Totally understand the % reduction when you get that low. At 120 we absolutely can’t get above 12,200rpm with a 79 gear and a total weight of 325lbs. Racing in the mile high city adds another dynamic to jetting a 2cycle. Ordered jets from 112 to 118. Going to just try stepping down until we get higher RPM’s. Switched the idle jets back to 60/45. Thanks for info. I’ll post sunday night after we run to see if we can gain some RPM’s and low end.