So my question is if I replace my stock headers for some aftermarket ones do I have to upgrade my gas grade? I believe the manual says 87 is ok stock. But if I modify the headers will it be better to run better grades of gas?














http://www.kidstopmodel.com/vote-combined-age03-06.html
Vote for my kid #12

 

no need to upgrade for high octane gasoline until you either advance your timing or push a lot of air into the cylinders.

 

you only need diff gas if you go FI or change internals or push timing to the point of detonation/knocking with lower octane

 

alright thanks, that'll save quite a bit of $$ since gas costs so freaking much now