i have a 351 w in mine. started toward the end of the season in 2000. its a pep boys no compression engine. ran 15.30 to start. have changed the cam and heads, 650 double pumper, msd 6 and billet distributor brought it to 13.50 in 2001. i just changed to an electric fan, electric water pump, 1" spacer, upped the jetting, went to the lightest distributor springs, synthetic motor oil, spool and 33 splne axels, today i had a flowmaster exhaust system installed (sounds great). with a little fine tuning i hope to be in the 12's this season.