New engine issues

dazedand confused said

Stock pumps like mine have been known to put out more then 6 psi and edelbrock/Carter 4 barrel carbs should no more then 6 psi running through them even at high RPM

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I run a BIG mechanical and a holley red electric with an edelbrock thunder AVS with the big needle and seats which is a copy of the Carter AVS. To much fuel pressure can sink the floats. The issue only shows up really at idle. My guess is it is not sinking the floats at idle. If not, the regulator is not needed and can create a host of problems especially if it is an inexpensive holley reg.