I have a 99 civic with an AEM cam gear, no cam, I/H/E and skunk 2 intake manifold. I was offered a FREE, yes, FREE Zex camshaft from a friend, and he is very trustworthy. the cam has been in two seperate cars, one before his (wasnt in that car for very long at all) and his car, 93 del sol, (for maybe...maybe 2000 or a lil more miles.) I was wondering if there could possibly be anything wrong with the cam? Is there anything that could actually BE wrong with it? worping or bad lobes? something? i dunno much in this area, but it was offered to me for free and i was just curious if there could be anything wrong with a twice used cam. The first car was a pretty built SOHC motorand he went with the stage 2, thats why he got rid of it. (Friends car) (the del sol, SOHC VTEC) puts almost 135 hp to the wheels with just that cam, AEM cam gear, header and exhaust, no AC or PS. dyno proven. Any info is greatly appreciated.