ok. I fell really dumb now, just figured out that there is a page 2 to this forum. :-( I have determined that I have 4.10 gears (didn't think that). I have also located a place in baton rouge that does custom tunes. Is anyone familiar with Thunder racing in Baton Rouge? Their website shows that they do several mods including the custom tune. They have dyno testing to verify it also. I have always heard of handheld programmers but never had heard of the custom tune before.