WOW I didn't expect this much feed back and support....It is MUCH appreciated. I don't think I'll be doing that change......at least not for a while. Would any one know if I would have to change out the crank upon installing a factory supercharger. And would I have to change the tranny as well? (Its brand new, it was swapped out at 191xxx

you would have to change the harmonic balancer, the ICM bracket and add the 2 idler pullies to your block. as far as the Trans goes you just need the HD diff and output shaft. and a tune to make it all function correctly

Are you referring to the crankshaft or the crank(shaft) pulley? The crankshaft, bearings, and block are the same between the L36 and the L67, but the connecting rods and pistons are different. Otherwise, that'* about it unless you go with ZZ Performance SS M90 stuff, and then you just need to put on a new lower intake and a supercharger and tune, for the most part.