So fuel is shooting into my carb after I shut the engine off, and its causing it to flood and making it hard to start. I adjusted the floats to about an 1/8" off the sight plug so I don't think theres an issue there. So my latest theory is that the gas is boiling from the heat of the engine and spitting into the carb. So I guess Holley makes a heat sheild to combat this problem but I have a few questions that someone might know the answer to. DOes this sheild work ? Are these 4150 & 4160 carb notrious for this problem?? Are they closer to the Intake or something??