Best Mechanical Fuel Pump

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.