On a Holley FPR, do you turn the screw clockwise or countclockwise to lessen the fuel pressure? Thanks
On a Holley FPR, do you turn the screw clockwise or countclockwise to lessen the fuel pressure? Thanks
Mike Clark
Okay, I think it's counterclockwise to decrease the pressure. Here goes!
<-- Needs a fuel pressure guage
Mike Clark
You are correct. Unscrew it (counterclockwise) to lower the pressure. The gauge is a good idea. I have one on my Holley regulator and it makes it easy to adjust and see what's going on.
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