Thanks pat The casting number on the heads that i have now is 352625. weiand dual plane intake and a 850 cfm holley double pumper. piston compression I dont know. I dont know about the cam except its an eljin with a .517 lift I think, just because he gave me a recipt with that and said thats what he put in it. I kinda want someone to tear into it and find out exactly what I got but it is running really good, just want some more power lol. Im sure that will be the problem from here on out.... The guy that dynoed it said he was kinda suprised at the numbers being what I have. At that time he told me he could put another cam & heads on that motor and get me another 60 to 80 hp at a cost of around 4500 bucks. To me that amount of increase wasnt worth the investment. We do this for fun not really racing or any kind of competion. I know in the drag world 60 or 80 hp would prolly be a big advantage, but I dont think i will really notice that out in the woods playing with a bunch of friends, but I could be wrong.