I have modified my poor XR650L to the point that it no longer can operate on pump gas. It has a Edelbrock pumper carb, JE 10.5:1 piston, Barnums cam w/ hardwelded rockers and FMF exhaust. Problem is I need to feed it CAM-2 or equivolent or it detonates/pings under load. I'm looking for advice on the easiest solution to return to 93 octane pump gas. Any help would be greatly appreciated.