I live in Denver-ish. I was currious if There would be any bennifit to bumping the timing up a little? It doesn't knock or anything with the current stock settings with 85 octane. What should I expect if I bump it up? I don't want to screw up the computer, but would like to get the most out of the motor.

Does anyone know the limit to timming advancement. I for shure don't want to pass it.

87 Toyota 4Runner-RV Head, Custom Grind Cam, Doug Thorley Header, Keith Black Pistions, 2 1/4" Magnaflow cat, Dynomax Exhaust
2003 Toyota Matrix XRS-Injen CAI