I have a 64 Falcon I'm restoring. I have a fresh built late 80's 5.0 in it, carbureted, and I'm getting closer to firing it off. I have a 2 row aluminum radiator from ECP installed. I had planned on running an electric fan so I picked up a Tuff Stuff 100 amp alternator for it with a built in regulator. It's the one with the natural finish and a GM hybrid case with Ford mounting. After I got the engine and radiator in the car, I saw I had the same problem many Falcon owners have, which is not enough clearance between the water pump pulley and radiator. The engine mounts are installed the correct way and I'm past the point of turning them around to move the engine back. The T5 is already installed and hole cut in the tunnel. Drive shaft is made and installed also.
I currently have a 5 blade steel reproduction fans like Melvin's and Mac's sell although I hate having to run a straight fan. My question is, do I really need a 100 amp alternator if I'm not going to be running an electric fan or any power accessories? Should I buy a normal alternator and run an external voltage regulator? Tuff Stuff makes a 70 amp Ford design alternator as well as an external regulator. It would be a little better than stock which I'm guessing was 53 to 60 amps. I'm installing a new complete wiring harness so I'm not hooking it up to factory wiring.