Holley carb question

4speedracer · 10-24-2022, 08:46 PM

If running a single inlet Holley carb for super stock can the fuel bowls be converted to a dual inlet?

SSDiv6 · 10-24-2022, 08:52 PM

Quote:

Originally Posted by 4speedracer

If running a single inlet Holley carb for super stock can the fuel bowls be converted to a dual inlet?

The carburetor must retain its original configuration.
If the original carburetor was a single inlet, it must remain a single inlet.

mschafer · 10-24-2022, 10:40 PM

And if the carb came with a metering plate in the rear bowl you can't convert it to a metering block.

Mike Pearson · 10-25-2022, 08:27 AM

I am pretty sure that you dont have to run the exact carb number any longer in SS. As long as it is the correct type carb and measures properly it is legal. Best to check with your tech director and get a clarification

pmrphil · 10-25-2022, 09:10 AM

But there ARE metering plates that utilize normal holley jets

mschafer · 10-26-2022, 04:09 PM

I know that metering blocks use a jet and if the carb didn't come with one on rear bowl it will DQ the car, I witnessed the car that this happened to at US National's this year in SS.

pmrphil · 10-26-2022, 06:15 PM

Quote:

Originally Posted by mschafer

I know that metering blocks use a jet and if the carb didn't come with one on rear bowl it will DQ the car, I witnessed the car that this happened to at US National's this year in SS.

I did say "plate", not block. It's common practice, if you have the right parts

Rory McNeil · 10-26-2022, 06:21 PM

Quote:

Originally Posted by pmrphil

I did say "plate", not block. It's common practice, if you have the right parts

Correct, I used a Quick Fuel plate, that has replaceable Holley jets, but fits inside the factory float bowl. So there is no metering BLOCK between the float bowl and main body. It is a direct replacement for the regular Holley 4160 metering plate, using the original screws.

Larry Hill · 10-27-2022, 08:18 AM

If modifying the stock plates for Holley jets, 1/4-32 UNF, the jet needs to be shimmed out to give the fuel room to make the turn. Being an old toy airplane guy I use two glow plug washers per jet. I have forgotten what epoxy Gregg from Tri-City Competition recommended but it’s still in my plates after all the drums of fuel we have used.

10-24-2022, 08:46 PM	#1
4speedracer Junior Member Join Date: Sep 2011 Posts: 51 Likes: 0 Liked 10 Times in 6 Posts	Holley carb question If running a single inlet Holley carb for super stock can the fuel bowls be converted to a dual inlet?

10-24-2022, 10:40 PM	#3
mschafer Junior Member Join Date: Oct 2014 Posts: 44 Likes: 0 Liked 13 Times in 9 Posts	Re: Holley carb question And if the carb came with a metering plate in the rear bowl you can't convert it to a metering block.

10-25-2022, 08:27 AM	#4
Mike Pearson VIP Member Join Date: Mar 2007 Posts: 2,437 Likes: 611 Liked 1,904 Times in 571 Posts	Re: Holley carb question I am pretty sure that you dont have to run the exact carb number any longer in SS. As long as it is the correct type carb and measures properly it is legal. Best to check with your tech director and get a clarification __________________ Mike Pearson 2485 SS

10-25-2022, 09:10 AM	#5
pmrphil Member Join Date: Aug 2010 Location: CT Posts: 454 Likes: 1,776 Liked 345 Times in 149 Posts	Re: Holley carb question But there ARE metering plates that utilize normal holley jets __________________ Phil Molski PMR Performance S/C 1623

10-26-2022, 04:09 PM	#6
mschafer Junior Member Join Date: Oct 2014 Posts: 44 Likes: 0 Liked 13 Times in 9 Posts	Re: Holley carb question I know that metering blocks use a jet and if the carb didn't come with one on rear bowl it will DQ the car, I witnessed the car that this happened to at US National's this year in SS.

10-27-2022, 08:18 AM	#9
Larry Hill Live Reporter Join Date: Oct 2004 Location: Hickory, Ky Posts: 10,614 Likes: 1,901 Liked 10,655 Times in 2,211 Posts	Re: Holley carb question If modifying the stock plates for Holley jets, 1/4-32 UNF, the jet needs to be shimmed out to give the fuel room to make the turn. Being an old toy airplane guy I use two glow plug washers per jet. I have forgotten what epoxy Gregg from Tri-City Competition recommended but it’s still in my plates after all the drums of fuel we have used. __________________ IHM Used Parts https://ihmusedparts.com 888-821-1817