Best Mechanical Fuel Pump

71Duster said
Currently running an FBO "special" mechanical fuel pump on my mild 340. Twice this has happened now.

After a WOT then off and just rolling the car starts to stumble smoke and then die. Had the air cleaner off on the side of the road and the carb is pukeing fuel bowls are way over full. This has happened on 2 different carbs. Had the bowls off and no crap inside and checked the reuseable fuel filter all good there.

No gauge so no idea what fuel pressure this pump makes but its supposedly ported and polished inside etc etc.

I'm done playing with the pump at any rate. What mechanical pump to feed a mild 340 pushing maybe 350-380hp would you recomend that doesn't need a regulator.

Not the pumps fault. It only fills the carb until the float rises and shuts off the incoming fuel. You have sticking or leaking floats in the carb most likely. Maybe they have leaked and are full of fuel and are too heavy now, or maybe there is crap in the carb causing it to stick. If so, it will continue to dump fuel down the carb after shut off until all the built up pressure is gone. Had this happen on my boat. I had to remove my compass and use it to beat the **** out of the carb until the float unstuck itself. Now I carry tools onboard!