I'm not sure of the amperage but I've pretty much decided to do the 12v conversion. I'm leaning towards the 10si as everyone seems to have very good results with it. My only question would be would a 63 amp work if down the road I win the lottery and add A/C? I would think it would as they worked in Camaros with A/C in the 70s. With not much more electrical in the truck other than lights, I think it would be sufficient.
