v-6 in early A-body
I would not do it if I didnt run injection as the choices for small 4 bbl carb are very limited. FI is super easy, dont really need to know much about FI to swap FI engine into vehicle, my harnesses require you hook up less than 6 wires. Batt, Ignition start/run, ground, fuel pump and thats about it. If you have a good running donor, pull it out, install it in 64, hook up fuel lines, throttle and let her rip. The harness comes with complete tech support for whole swap too. Find a donor and I will walk you through it...