Hey Hank, I see that you are looking at "Stack EFI (looking at the new Speedmaster downdraft EFI with the “fast” computer)." I was down at Laguna Seca and looked at the Superperformance Cobra that they had - it had Roush motor with some sort of stack EFI. I'm starting with a 302 that has been donated to me by a good friend and I think I want something like this EFI option - I'm googling around and am confused by what I need in addition to the manifold, which seems to run at about $2400. I realize I could keep researching but I figure you have already been down this path!