ignition coil ?

before and after . I eliminated the regulator on the feed and ran the feed right to the carb. Then I ran the return to the regulator and back to the top of the gas tank There are two different regulators . A feed style and a return style. I had to remove the feed style and install the bypass/return style

Holley 12-881 Holley Carburetor Bypass Style Fuel Pressure Regulators | Summit Racing

Holley 12-803 Holley Fuel Pressure Regulators | Summit Racing