Thread: Fuel Pressure Question..help Pl's

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Hi there, I have a question, and I just want to be sure before I have problems. Here go's.... I'm running a 3x2 setup with Holly 94's....I've blocked off the secondary carbs and running just the primary carb, with a electric fuel pump and getting ready to install a fuel pump pressure regulator.
The first question is; Should I run the p/r right after the fuel pump, or up by the fuel block? or does it even matter?
And the second question is; Should I set the f/p at 2.5-3 psi or less. This carb was just compleatly gone through, new shafts, seals, bushings, flow benched, the whole enchalada....I just want to be sure on the pressure.
Thanks for your help.....

Anywhere after the fuel pump is fine, most put it and a pressure gauge under the hood somewhere, firewall, fenderwell, etc.
As for pressure I believe 2.5 psi is MAX for the 94

Thanks that's what I thought, but I was'nt sure. 2.5 psi won't make it run too lean? I've heard that the 94's and 97's can't handle much pressure, like a rochester, or a Holley 4 barrel. Thanks for the heads up.....Take care, Dennis

Originally posted by DHOTROD
Thanks that's what I thought, but I was'nt sure. 2.5 psi won't make it run too lean? I've heard that the 94's and 97's can't handle much pressure, like a rochester, or a Holley 4 barrel. Thanks for the heads up.....Take care, Dennis

You'll have plenty of volume for that carb with that pump, IF it's running lean you'll need to play with the jets, just out of curiosity why did you disconect the secondarys