CR Problem?

if you do not mind mixing your own fuel try this mix [i was in the fuel field for 30 plus years] 9 gal 100LL av gas,1 gal toluene from paint store and 6.6 gal of 92 oct unleaded the av gas by it self is too dry and the vapor pressure is off the toluene will help this and the 92 oct. gas will givew you the need additives this mix will net you a oct reading of 107.6 aand make the eng run like a rapped ape