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Re: Holley electric pump need a regulator?
"New question if I shut the engine off and turned on the pump, would I flood my
Truck or would the pump know to let the fuel run back?"
No , A Functioning needle and seat in any carburetor will hold back 5-7 psi ,maybe even a few pounds more. Don't forget any thing with a manual fuel pump has a small amount of pressure when the engine is turned off. If its the carb is in good shape it will not flood the intake after shutting the engine off.
Now if you crazy on the fuel pressure like 10-40 psi you could override the carb and fill the engine up with fuel , not a good senario.
Dez
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