Has anyone blocked off the crossovers on the ultra 150 intake manifold? Iím trying to get some better throttle response, and I know that group k blocks off the crossovers for their 1350 and their stage 2 kits, but has intone done it on a stock ultra? From what I read it makes it way rich so could I block the crossovers then drill holes in the fa cover until itís leaned out enough to be right? I will upgrade to aftermarket carbs eventually but I was wondering if that would work. Thanks!