comp. cam iwill never use even if they are the last cam maker on the planet. back in the 80's when they first hit the scene i tried one of there cams. i forget what they call them back then but they were alaround perforamance cam. i ordered one from my local speed shop. it wa s for my 1976 trans am 455/4-speed. well installed cam dailed in cam put engine together. it sounded good at idle would rev good in nutral. backed it out of the garage an went for a road test. the thing did not have enough power to make it up the driveway you really had to slippe the clutch to get this thing moving on flat land. i let it set for a week. then the speed shop called me and said that comp cams had sent out some pontiac cams that were ground wrong. i removed the cam and returned it to the speed shop. they sent it back to the company in memphis. 2 weeks later they returned it unopened.with refused stamped all over it. the shop call them. and they told him that they were not going to make these cams good. i wrote several letters to them all were returned. i next filed a claim with the bbb in memphis. i never heard from anybody.after several months later i set down with the cam and completely measured every thing the first 8 cam lobes were right on all the others were completely different from what the spec. called for. after that experience i stsrted using crane and crower cams.