Mid-1950s Cadillac and Olds 98 with air conditioning ran a 45 amp generator, IIRC. Maybe Buick Roadmaster, also. There was also a 55 amp for some big truck applications, I think. Some of those generators ran a 2-belt pulley to carry the extra load, I believe.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!