hate to tell you but powerdynes aren't worth too much. i'd look over on the corral classifieds and see what other ones are going for. maybe take half of the price of a new one...just some suggestions
well it was rebuilt not to long ago. didnt really use it after the rebuild cause after it was done and put back on the car it dropped a rod. so now I might be parting out the car. I think you can change pulley sizes and up the boost to at least 9 lbs. I think ford motorsport had a 9lbs kit