I pursued several avenues at one time looking for the perfect supercharger for my car and the hot small block that I was going to drop in. I struck out over and over again trying to find a direct fit application out there. It looks like the C4 and 5 guys have the advantage here.
That is, for a direct fit system.
Turbos are nice. They are the way to go if you have the correct supporting systems to really let them do their thing. However, I struck out on findind a direct fit system.
Maybe there are some new systems out since I was last looking. In any event, you are welcome to custom fit a unit to your car. Procharger has some of the best stuff out there.
Let us know if you find a direct fit application for the C3.
I have a 1968 vette with 350 and a 144 B&M (now holly) superchanger :Roll . The hood is a high rise hood I think from ecklers, looks like a modifided L88 hood. The blower with aircleaner fit with no problems.
With the blower producing about 6 psi boost max at WOT.
I will say that it sure is fun to drive around with the extra low end torque, and on the freeway I love seeing the other guys face (usually a mustang) when I open her up and the blower starts to make that whine. I just just love the noise.
The engine is a stock GM creat motor 8:1 CR pistons, 4-bolt main, stock cam, heads etc. I am making about 375 hp.
I know if I spend about 1000-1500 I can make about 500+ hp with now problems and have the engine that will last a long time.