Thread: Timing advance question

01 gtp stock timing should be about 16º wot top of the rpm range.

if its like 8º you have a boat load of kr. every degree of kr pulls 2 degrees of timing. stock they all have kr. 3 inch down pipe or headers can usually kill that off for ya.

as far at the tune goes, rules are you should be running good, no issues like bad fuel trims or exhaust leaks or it running like crap thinking the tune will fix that.