How much fuel in gallons do the long time 3.3 users get on average before rebuild/replacement of engine if tuned properly? I have am on my forth gallon of fuel and tuning is more difficult but not immpossible. Anyway I am going to a big race next weekend in Herny County GA. and I don't really have the money for rebuild, but if it is for sure time for rebuild I will do it. The flywheel is pretty easy to turn over with finger is this a indication of worn sleeve/piston? I race my truck almost every weekend but haven't run it real hot or lean. Thanks for any info on 3.3 run time!