Alright guys I'm planning on swapping my tired 350 in my '72 C20 for a duramax in the next couple of months. I'd like to find out what everyone's opinions are on the LB7 generation of Duramaxs. I'd like to know what problems you had with them stock and with aftermarket parts installed. What's been the best things and the worst things, pretty much the general consensus on this generation. The more info that I can get the better off I will be on which generation I'll be buying...