69 Dart GT Conv. 340-6pak

How many amps is your alt rated at? What's the diameter of the crank pulley? Yours is definitely going to be on the road before mine. Let me know how it charges at idle.

Darren,
The alternator is rated at 100 amps but the pulleys are under driven. When I go to the shop tomorrow, I measure the crank pulley, and drop you a line.