Introduced in August 1964, Ford’s first-generation Model 1G alternator was a real step up in reliability and current output compared to the old-school generators it replaced. Originally available in ratings ranging from 38 through 60 amps, the 1G was at best barely adequate when the electrical system was brand new and most cars only had a radio, a heater, windshield wipers, lighting, horns, and a points ignition system. But with an aging, under-wired electrical system and today’s typical hot rod add-ons like electric fuel pumps, fuel injection, high-output ignition systems, Halogen headlights, power windows, and air conditioning, those lazy 1G alternators and their crude separate voltage regulators aren’t up to the job. Frankly, other than a straight resto, it’s time to put them out to pasture in favor of modern,…