Yeah, I know this cam is a little much for the motor I'm building, but I do think it's still usable, although not ideal. If can't get rid of it maybe I'll just keep it and give it a shot. I can always pull it if it runs that bad. But 242/252 duration is not that out of line so I think with a 3500 stall and 4.11 gears it may be doable. This is a very expensive cam and I would hate for it to go to waste or sell it for a fraction of what I paid for it.