best educated guess on HP

I dont doubt LXModguy about the cam, that was like THE baddest cam you could get to work with a factory computer at one time was it not? Honestly with a MS3 you have the advantage of not worrying about idle characteristics with factory ecu and you can get gnarly with duration and lsa. What valve springs mcat? LXM guy I also know that tuners have made leaps and bounds with the factory ecu since this cam was ground.