I cant seem to find an answer to this. If using a stand alone fuel system for nitrous with 112 octane and the engine runs on pump 89 octane. Do I still pull timing out like I would if I were running the N20 system and the engine off the same fuel source? Or can I get away with leaving timing at where the engine runs best up to what jet level? 150? Hope I didn't make this too confusing. #-o