help changing fuel pressure regulator

3 screws hold the regulator on. relieve fuel pressure, remove the regulator and put the new one on. there is a set screw on the adj reg that you turn to raise/lower pressure

unscrewing should lower, screwing in should raise. you need to get a fuel pressure tester from autozone and run it on the schrader valve. pressure should be around 42 although i believe 38 at idle is correct (its late and i cant remember for sure) havent had to adjust my holley in a long time.

Plan on removing your upper intake, or at least loosen all the bolts and move it around until you can get access to the 3 screws. That way you can probably get by without dealing with all of vacuum lines like the tedius one under the manifold. Just make sure you don't drop anything down the bottom manifold opening !