I got this issue with this carb,it's brand new,first it won't go on idle circut,probably cause it's running rich so i've check my install multiple times i do have a 1 1\2 alum. spacer. if you let it sit after running for a few minutes after warm up it floods, so here the puzzling part, check the power valve appears to be fine (just using my mouth to suck on it) when running the bowls are dead center, when you let it sit a week it barely drops in the sight glass the accelerator pump also is still holding gas.anybody got an idea on what i could check next? THANKS also have pressure regulator set at 5lbs.