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.

 

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

 

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?

 

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.