I am running a holley mechanical 130gph fuel pump. It says that it does not require a regulator. When the car is idling the fuel pressure guage fluctuates very rapidly between 4-7 psi. The needle moves back and forth very quickly. Does anyone know what could be causing this? The car seems to idle fine although I do have a slight miss that I am trying to figure out.
68 Island Teal
Hotchkis TVS with Global West UCA's
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