I wish I had access to race gas. Closest track is about 60-75 miles away. Unless I can mix in jet fuel? We have a airport with fueling station for them...
would that work? haha
I have a similar issue on mine, stock pulley, intake, SD Headers, DHP1.0 but still seeing 4-5* KR. Need to drive around and see about a 93 station, most I've seen local are only running 91 and none of them work better than the other for getting rid of the KR.