what is a safe cr to run on 91 octane with the motor being bottle fed? i was thinking about skunk2 stage 2 cams with je 10.5:1 pistons. can i get some feedback. all of this on a ls/vtec. p72 head. b18b block bored to 84mm.

 

nitrous loves highcompression. but high compression begs for high octane fuel. you could get highcompression internals wtih race gas or octane booster.

 

It all depends on how big of a shot you are going, I dont thinik 91 octane is recomened for any shot

 

Depends on how big of a shot you are planning to run.