Fuel Regulator Problem - Third Generation F-Body Message Boards

ssjp1014 · 04-19-2009, 01:11 PM

I purchased a holley fuel regulator to put on my 91 firebird, i am running the electronic pump from the tank to the carb 350 i put in. Problem is, the regulator is not doing much at all to bring down the pressure the fuel comes out with. any help is appreciated.

Windsma · 04-19-2009, 01:30 PM

From racing use (wet nitrous) those holley style regulators dont work for HIGH to low pressure apps.

ssjp1014 · 04-19-2009, 01:47 PM

yeah that is the reg. that i have. but still it just doesnt even stop the flow of fuel at all... i had another cheap one, and i thought that i just was broken.. but it still did the same thing at low psi. could the pump be to powerful?

five7kid · 04-19-2009, 03:55 PM

Quote:

Originally Posted by ssjp1014

...i am running the electronic pump from the tank to the carb 350 i put in...

Do you mean the stock electric in-tank pump? If so, you don't want to be using that regulator. It is a dead-head type, and the stock type in-tank pump needs constant flow. Get a return style reg like the Mallory 4309.

FWIW, that Holley reg does fine on the '57 with the Aeromotive SS pump.