how high of octane do i need?

[big pit 007]

i bought a noss cool head on ebay and got 19cc and 22cc domes with it. stock bore and storke. fmf fattys with k and n filter. live at 2500ft but mostly ride at oregon dunes. my timing is +4 . dont want to run full race gas, cost to much here. is octane boost crap? whats the lowest cc i can go on pump gas. its oxegenated here during winter an 92 octaine

[donkeypuncher]

i bought a noss cool head on ebay and got 19cc and 22cc domes with it. stock bore and storke. fmf fattys with k and n filter. live at 2500ft but mostly ride at oregon dunes. my timing is +4 . dont want to run full race gas, cost to much here. is octane boost crap? whats the lowest cc i can go on pump gas. its oxegenated here during winter an 92 octaine

 

with the 22cc domes you can run pump gas. whit the 19 cc domes you will more than likely need to run pump/race fuel mix (atleast). i run 21cc domes and +5 timing and use straight pump gas. and octane boost doesnt do shit.