So with 100oct race gas how much leaner and how much more timing can you generally run over a 93oct tune ? Say your street tune at WOT full boost is 12.0:1AFR and 18 dregees advanced timing, would it be safe to say the you could possibly run 13.0:1AFR and 22 degrees advanced? Generally speaking...

 

only you can know that for sure...like I said, start with a mountain, and with a wideband and knock detection through your datalogger, or whatever you use to moniter knock, increase till timing is pulled....back it down a couple degrees and you should be in the ballpark