I just pulled this cam out of my car it has about 5,000 miles on it, but still looks new. Its a Comp Cam 304 the specs are .500 intake and .510 exhuast with 1.5 rocker arms and the duration is 210/220 LSA 114. I had very good luck with this cam it has a good sound and extremely streetable while still making good power. I ran 12.6's at 108 with this cam. I'm looking to get $125 out of it that is half the price of a new one.