On the long term thinking, it's not all that clear. Some things are sure to be done sometime like a rear wide body, 1970-78 Camaro dash conversion with Stewart Warner Power series Titanium gages, most likely T-Top conversion too. Probably a better sound system, eight speakers or so. And the engine. Of course the engine. I'm in a big dilema: I want to update the whole powertrain of about twenty years, get in the OBDII emissions system, reduce pollution, get gas mileage, be more efficient and all that stuff. I have two options: the heart and the head. The heart choice is the C5 Corvette engine, with all the sportive features, the glamour and the pride, but has a very high purchase price. The LS6 5.7L engine have 385/385 in 2001. Despite it's size, there's still dificulties to plug all the electronics to make it work. The head choice is the 2001-up Duramax diesel engine. It has a turbo, lots of torque, lots of potential, great fuel economy and is more affordable. The LB7 6.6L have 300/520 in 2001. It may be more difficult to swap, due to the size of the engine/transmission.