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Message: <blockquote data-quote="98-5.0" data-source="post: 248243" data-attributes="member: 9042"><p>ok sry the post is late...........but for all that was curious............the number 8 intake valve guide was shot and the valve wouldnt seat right............the leakdown test showed 95% on that cylinder and blew my hand off the lower intake port when i put 125psi to the plug hole........so both heads went out for machining and they was all fine but that one valve guide but put new springs valve job....all the wrorks..........so i get em back wednesday and well see what happens ............i guess the knocking was actually spark knock or detonation.........so i should be all fixed up</p></blockquote><p></p>