I use a Holley 4160 with the fuel inlet on the left. I have an extra one like new if you need one.Price is right. In a message dated 6/25/2025 10:10:01 PM Central Daylight Time, detomaso@detomasolist.com writes: George, You are manufacturing a solution to a problem that doesn’t exist and then creating huge problems. Yes you can flip a Holley around backwards, as long as the intake will accommodate it. Some carbs have smaller primary butterflies but most Holleys do not. So MOST intakeS either have four equal holes, or a single opening. But for the sake of argument, let’s say you flip your carb around and have a shorter fuel line as a result. Hooray. But now your PCV inlet to the carb fouls the distributor, your electric choke is on the wrong side so the wire won’t reach, and most significantly, there is no way to hook up the throttle cable! From new the Pantera had the tank on the left and carb inlet on the right. It’s never been a problem. It’s an interesting thought though! Mike Sent from my iPad
On Jun 25, 2025, at 17:29, George Sekula <georgesekula@outlook.com> wrote:
Sorry for jumping in. I wish the fuel feed on a Holley 4150 was on the same side as the Pantera fuel tank and contemplated mounting the carburetor backwards. But I am not sure if the vents, metering block, and power valve would still work correctly. Thoughts? __________________________________________________________________
From: Garth Rodericks via DeTomaso <detomaso@detomasolist.com> Sent: Wednesday, June 25, 2025 7:48 PM To: detomaso@detomasolist.com <detomaso@detomasolist.com>; Ben Roper <ben_roper@yahoo.com> Subject: [DeTomaso] Re: New Member - engine dies under hard braking
Install a one-piece vent tube. This will prevent fuel from flowing out your vent tube and flooding the carb. Instead, it will flow to the front bowl under hard braking. I had the same problem and made my own vent tube for my Pantera. See examples in these threads... [1]https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww .vintage-mustang.com%2Fposts%2F10877511%2F&data=05%7C02%7C%7C1c0719e724 e74b239b2c08ddb442c7e5%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C638 864921124397206%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiI wLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C %7C&sdata=aua3g9O5jZkIeWvp5vlm0ppHFO1zGE4RvV7oOBiEA3c%3D&reserved=0 It's a popular mod for the off-road/Bronco crowd too. [2]https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcla ssicbroncos.com%2Fcarb_tricks.shtml&data=05%7C02%7C%7C1c0719e724e74b239 b2c08ddb442c7e5%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C6388649211 24423009%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMD AwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sda ta=iHxTFPu0FVFu0wdpk%2FBrzMNRD5KZ0aBN%2F1D%2BB%2FOqxKo%3D&reserved=0 Or, order one. [3]https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww .ebay.com%2Fitm%2F192886524715&data=05%7C02%7C%7C1c0719e724e74b239b2c08 ddb442c7e5%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C638864921124439 281%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCI sIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=%2 BubMNb9oHkNm%2Fa3PRhIFlnjqpufm7slXWQeZoMHzPJE%3D&reserved=0 [4]https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww .figspeed.com%2Fcarburetors-accessories%2Faccessories%2Fvent-tube-off-r oad-and-marine-4150-4160.html&data=05%7C02%7C%7C1c0719e724e74b239b2c08d db442c7e5%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C6388649211244531 50%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIs IlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=P2l %2ByxuC98PEWDPpEsoOE6MmY%2BMgkgy%2BX5e8HZPcJzo%3D&reserved=0
On that note, I am having a very strange issue with hard braking. If I stab the brakes hard, the car will idle way down and even die. I did a vacuum leak test around the carb and intake manifold yesterday and didn’t find anything. However the car is equipped with an auxiliary vacuum pump on the booster so vacuum shouldn’t (?) be an issue. The carb floats are set center line, but I have a hunch I still need to lower the rear float despite the carb having whistle vent tubes it seems like fuel is flooding into the butterfly’s. I have read some posts by Asa regarding the carb being a real pain in the ass to tune, and the cam not hardly making any vacuum which are most likely contributing factors. But my hunch is that fuel is sloshing. What can I do to mitigate or test this?
References
1. https://www.vintage-mustang.com/posts/10877511/ 2. https://classicbroncos.com/carb_tricks.shtml 3. https://www.ebay.com/itm/192886524715 4. https://www.figspeed.com/carburetors-accessories/accessories/vent-tube-off-r...
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On Jun 25, 2025, at 17:29, George Sekula <[1]georgesekula@outlook.com> wrote:
Sorry for jumping in. I wish the fuel feed on a Holley 4150 was on
Detomaso Email List is not managed by POCA Posted emails must not exceed 1.5 Megabytes DeTomaso mailing list DeTomaso@server.detomasolist.com http://server.detomasolist.com/mailman/listinfo/detomaso To manage your subscription (change email address, unsubscribe, etc.) use the links above. Members who post to this list grant license to the list to forward any message posted here to all past, current, or future members of the list. They also grant the list owner permission to maintain an archive or approve the archiving of list messages. I use a Holley 4160 with the fuel inlet on the left. I have an extra one like new if you need one. Price is right. In a message dated 6/25/2025 10:10:01 PM Central Daylight Time, detomaso@detomasolist.com writes: George, You are manufacturing a solution to a problem that doesn’t exist and then creating huge problems. Yes you can flip a Holley around backwards, as long as the intake will accommodate it. Some carbs have smaller primary butterflies but most Holleys do not. So MOST intakeS either have four equal holes, or a single opening. But for the sake of argument, let’s say you flip your carb around and have a shorter fuel line as a result. Hooray. But now your PCV inlet to the carb fouls the distributor, your electric choke is on the wrong side so the wire won’t reach, and most significantly, there is no way to hook up the throttle cable! From new the Pantera had the tank on the left and carb inlet on the right. It’s never been a problem. It’s an interesting thought though! Mike Sent from my iPad the
same side as the Pantera fuel tank and contemplated mounting the carburetor backwards. But I am not sure if the vents, metering block, and power valve would still work correctly. Thoughts? __________________________________________________________________
From: Garth Rodericks via DeTomaso <[2]detomaso@detomasolist.com> Sent: Wednesday, June 25, 2025 7:48 PM To: [3]detomaso@detomasolist.com <[4]detomaso@detomasolist.com>; Ben Roper <[5]ben_roper@yahoo.com> Subject: [DeTomaso] Re: New Member - engine dies under hard braking
Install a one-piece vent tube. This will prevent fuel from flowing out your vent tube and flooding the carb. Instead, it will flow to the front bowl under hard braking. I had the same problem and made my own vent tube for my Pantera. See examples in these threads...
[1]https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww
.vintage-mustang.com%2Fposts%2F10877511%2F&data=05%7C02%7C%7C1c0719e724
e74b239b2c08ddb442c7e5%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C638
864921124397206%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiI
wLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C
%7C&sdata=aua3g9O5jZkIeWvp5vlm0ppHFO1zGE4RvV7oOBiEA3c%3D&reserved=0 It's a popular mod for the off-road/Bronco crowd too.
[2]https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fcla
ssicbroncos.com%2Fcarb_tricks.shtml&data=05%7C02%7C%7C1c0719e724e74b239
b2c08ddb442c7e5%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C6388649211
24423009%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMD
AwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sda
ta=iHxTFPu0FVFu0wdpk%2FBrzMNRD5KZ0aBN%2F1D%2BB%2FOqxKo%3D&reserved=0 Or, order one.
[3]https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww
.ebay.com%2Fitm%2F192886524715&data=05%7C02%7C%7C1c0719e724e74b239b2c08
ddb442c7e5%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C638864921124439
281%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCI
sIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=%2
BubMNb9oHkNm%2Fa3PRhIFlnjqpufm7slXWQeZoMHzPJE%3D&reserved=0
[4]https://na01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fwww
.figspeed.com%2Fcarburetors-accessories%2Faccessories%2Fvent-tube-off-r
oad-and-marine-4150-4160.html&data=05%7C02%7C%7C1c0719e724e74b239b2c08d
db442c7e5%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C6388649211244531
50%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIs
%2ByxuC98PEWDPpEsoOE6MmY%2BMgkgy%2BX5e8HZPcJzo%3D&reserved=0
On that note, I am having a very strange issue with hard braking. If I stab the brakes hard, the car will idle way down and even die. I did a vacuum leak test around the carb and intake manifold yesterday and didn’t find anything. However the car is equipped with an auxiliary vacuum pump on the booster so vacuum shouldn’t (?) be an issue. The carb floats are set center line, but I have a hunch I still need to lower the rear float despite the carb having whistle vent tubes it seems like fuel is flooding into the butterfly’s. I have read some posts by Asa regarding the carb being a real pain in the ass to tune, and the cam not hardly making any vacuum which are most likely contributing factors. But my hunch is that fuel is sloshing. What can I do to mitigate or test this?
References
1. [6]https://www.vintage-mustang.com/posts/10877511/ 2. [7]https://classicbroncos.com/carb_tricks.shtml 3. [8]https://www.ebay.com/itm/192886524715 4. [9]https://www.figspeed.com/carburetors-accessories/accessories/vent-tu be-off-road-and-marine-4150-4160.html
Detomaso Email List is not managed by POCA Posted emails must not exceed 1.5 Megabytes DeTomaso mailing list [10]DeTomaso@server.detomasolist.com [11]http://server.detomasolist.com/mailman/listinfo/detomaso
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Members who post to this list grant license to the list to forward any message posted here to all past, current, or future members of the
IlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=P2l list. They also grant the list owner permission to maintain an archive or approve the archiving of list messages. Detomaso Email List is not managed by POCA Posted emails must not exceed 1.5 Megabytes DeTomaso mailing list [12]DeTomaso@server.detomasolist.com [13]http://server.detomasolist.com/mailman/listinfo/detomaso To manage your subscription (change email address, unsubscribe, etc.) use the links above. Members who post to this list grant license to the list to forward any message posted here to all past, current, or future members of the list. They also grant the list owner permission to maintain an archive or approve the archiving of list messages. References 1. mailto:georgesekula@outlook.com 2. mailto:detomaso@detomasolist.com 3. mailto:detomaso@detomasolist.com 4. mailto:detomaso@detomasolist.com 5. mailto:ben_roper@yahoo.com 6. https://www.vintage-mustang.com/posts/10877511/ 7. https://classicbroncos.com/carb_tricks.shtml 8. https://www.ebay.com/itm/192886524715 9. https://www.figspeed.com/carburetors-accessories/accessories/vent-tube-off-r... 10. mailto:DeTomaso@server.detomasolist.com 11. http://server.detomasolist.com/mailman/listinfo/detomaso 12. mailto:DeTomaso@server.detomasolist.com 13. http://server.detomasolist.com/mailman/listinfo/detomaso