So i installed the 330 big bore kit added a stage 1 hot cam full DG exhaust kibblewhite black diamond ss valves and racing springs. Moog air filter open lid. The issue im having 1: the dang thing kicks back and hurts the foot from all the compression. Is there a way to adjust it? 2: ive jetted carb. Now when started ( pull start in 4th from compression) it will idle and u can give it qrt throttle and its fine but anything after that and it sounds like im 2 stepping it.. Spits fire and pops...every now and then it will clear up and it sounds like its got some *****. It will run through all gears qrt throttle but anything after that same thing pops and throws fire ***** but let go of throttle and its idles fine... ? Any ideas? It has the Nibbi Racing Carb 135 main and a 40 pilot. The head was ported and polished on exhaust and ported on intake. Things wants to go but it just seems like its missing something..any help would be appreciated!