ok here goes, 71 340 motor with j heads, edelbrock rpm cam, 273 adustable rockers, had engine running but had ticking noise, found 273 pushrods to long, installed new shorter pushrods, noise was still there but not as bad, pulled lifters and they are not any good, ran this engine for about an hour and a half total, question is can i just replace lifters or do i need to replace the cam as well?
