I did it when I swapped my tired 302 for a 393 stroker. Its not hard. I kept the EFI pump and lines and picked up an Aeromotive A1000 Efi to Carb fuel pressure regulator. It takes the High pressure of an EFI system down to 5-15 lbs of pressure. See the picture for how I plumbed it.



You can keep everything on the car the same you just need to get a MSD box and distributor because once you pull the EFI harness you will lose the TFI distributor. I wouldn't recommend using a "Points" Style distributor. They suck Llama tits. I could drive my car every day with no problems... I never recharged the AC so it got a bit hot but I retained everything that was in the car before the swap.... just ditched the EFI crap.