With your compression ratio what octane are you running? I almost fell over today what the VP Racing fuels prices have done. I'm almost thinking of turning the nitrous off...nah, lets not get drastic. I picked up a 30 gallon drum of VP C16 today. Guy told me if not today. prices going up tommorrow, March 1. Single gallon price was $10.50, 30 gallon drum $8.50 and 55 gallon $7.75.(But you get the keep the 30 gallon drum) He said use for re-cycled oil, he'll take it back)
C12 holding at $6.15 per gallon.