I say huge but I'm looking to replace the Pontiac 350 with a 455.. I know new stuff can break and old stuff last forever. but it looks like trans is only gonna be 1200 or so...I don't know anything about it and I know the car sat forever... I usually don't fall victim of the hype on upgrades in most cases.. but the rear end is new, motor gonna be atleast twice the HP..and I want to drive the car a lot this year.. I have plenty of time to work on it now and NO time to work on it in the summer..