wow, this post made it back. I am still working my twin turbo V8 build. I have the multi port fuel injection manifold, throttle bodies, and misc parts setting in the garage. But the major thing I decided is that I can't start by putting the engine in a 240z(too much work at once and I would lose interest). So it is going elsewhere first. I am building my own turbo headers because I can't imagine many cases where pre-made headers would clear everything like I want and give me the turbo placement I want. Looking to fire the turbo V8 this summer in my 34 pontiac. Then who knows maybe I'll put a turbo big block in the pontiac and move the turbo sbc into the 240z. Since my projects are a mixture budget and opportunity they are always re-shaping.