I have a 472 CI EFI C6 combo installed in my 64 "Christine" It was a simple plug and play application as i used the entire wiring harness out of a 88 F250.

The key is to use the ford harness, computer and rewire the entire truck with modern wiring and fuses.

From head lights to tails including fuel pumps and reverse lights were used. The 86 to 89 harness is about the simplesest with a 2" bulkhead connector. I also installed the 88 dash into the 65 66 CC bezel. I really did not have to modify the wiring much to get everything working. Even have cruize control as i installed the 88 tilt collum on a 61 427 rod hanger. I have over 12 thousand miles on the truck since built.

A small block application will be a similar install as the 7.5s and 5.8s share the same puter.

Garbz