I have a 397cc 4 mil banshee which I have changed the domes to 22cc and I can’t get it to run like it should.
mods are 66mm 795piston, 4mil long rod crank, Cel Needle middle clip, running 33 keihins. I am at 250 above sea level. The compression sits around 175. What gas should I also be running because I tried 93 and it was not performing well. I am willing to give any information on the bike. Just want it to run as it should and compete.