ive got a 1990 dodge 350 ive put a denny T stage 2 turneed the timming up i went a 1g of an inch more gound down the fuel pin spacer 9 hundreds of an inch turned the fuel screw in aabout a turn and thats about all any other cheep mods yal know about eventually ill start doin the spendy ones raced a 07 duramax with a chip exaughst and intake i whooped it when we both did a 2wd launch but he got me when we did 4x4