[tireburner163]

Ok you could pick the parts off of a EFI Mustang or try Winsor-Fox they might have something. But it really not worth it to me, you won't gain any power. You can add a supercharger to a carb.

As for converting from a C-4 to a C-6. You will have to find a C-6 with a small block bolt pattern(very rare). But why? The C-4 should be plenty strong(I've seen them on many 10 second cars) Also you can swap in a 4 speed AOD into your, Winsor-Fox makes a swap kit.

As for the F-150 rear-end, if the width is the same it should fit.

PS. I hope you typed this wrong, but you don't really have 3 1/2" exhaust do you.