I plan on running 8 stack E.F.I. on my car and I'm looking for opinions on what is the current state of the art available today. Holley seems like the way to go for ECU but I'm not sure who makes the best Manifold and throttle bodies. I'm looking at Borla, Inglese, and Hillborn but are there others I should consider? Do any of these companies cast their own manifolds...if not then who does? How do you determine throttle body size? The engine is a 408 cleveland with iron 4v heads, it made 500 H.P. on the dyno with a 750 Holley on an Edelbrock manifold. I also intend to run 180 headers if that matters.