Lugnutz I don't think your wasting energy on the ZDDP,remember EOS, you got from chevy ?? They told you to use it on a new cam !! The Chevy haters said oh soft cams in those sixties engines !! Well if you wont follow there guide lines what can you expect !! Always used EOS (engine oil supplement) have a 30/30 in 327 that is 50 years old still gets it !
