ya, i think i was just lucky, but i also had some 93 in the tank last week so maybe there was just enough for the lower rpms

would going to a hotter plug do anything power wise?

or what else could i do?


also is it possible to have more than 1 truck tuned at a time with the 3815?
(i.e. my 318 tuned to tow, while i use the same 3815 to tune my stepdads 360 to performance without returning my 318 to stock)