Sherri, the best place to start looking at why you have this plug problem would be a good book. Try a Haynes manual. My plugs on my '77 Z have fouled out several times and none were oil related. My problems have been over heating, DUH? , and running too rich. Anyway, it could be caused by several things, not necessarily bad rings, DUH. My '77 only has 70K on it, 6K of which I've put on. Better not have a ring problem! Good Luck! Someone here should be able to point you in the right direction.