Aha, mounting an HIF? Two things I found helped with mine: 1/ make a heat shield (I used sheet aluminum and that thermal fabric which is sold as protection for starter motors - starts first pop no matter the heat soak) and 2/ if you are using the HIF, get one of the big motorcycle part catalogues and get the HIF float bowl extender, adds a couple of ounces to the bowl, again helps resist vapor lock and fuel starvation on cornering, costs about $15.