I'll tell you what I know (or, think I know.)
TUNING is more important than most folks realize... getting a fuel delivery system that can give your engine exactly what it needs in terms of mixture, both under boost and at cruise, is not the easiest thing in the world to do. For starters, carburetors were never designed to function under boost. Particularly, under 20+ pounds of boost. But, that's where the power is. And, that's where the fun is! But the negative aspects of this tuning business is, if you make a mistake and happen to get it lean under boost (a disturbingly easy thing to do,) detonation can (and will) destroy your engine in the twinkling of an eye. That is particularly true if you have built the engine on a budget and have used stock, cast pistons with stock-type rings. That is why it is just about impossible to build one of these things without the aid of a wideband oxygen sensor,
That piece of equipment is the first thing I'd recommend a clant six turbo builder buy... for sure!
More later... morphrus calls...:glasses7: