Can load change your tune?

[vAtO]

I am at sea level, with a 11/1 cp piston at 0 deck and had to cut the head some to get it flat, so c/r is around 13/1 if my math is right. I had tryed 93 on the dyno and it rattled the motor so we mixed with 110 50/50 and all is good.. I get the 110 at the gas station at $4.65gl

Oh ok my bad