I wold doubt it's cam wear as that cam is billet steel. Maybe a bad lifter or bent pushrod, but you would have seen the pushrod thing when you tore it apart. Also checking in the manual available to us there has been alot of problems with poor distributor caps causing this problem as well as valve guides causing sticky valves. I am assuming on the valve job that was done that the guides were checked. There was also one or two that had a catalytic converter plugged as well, but if you put a vacuum gauge on the intake if you can find one you should have about 20"of vacuum if it's around 15 then i'd disconnect the converter to see if it cures it temporarily unntil you can fix the converter. The cure for the dist cap was to get OEM. That should be easy to find, especially if you have already elimnated practically everything else. One other thing I forgot about is to check the harness going into the intake, it may h ave a bad wire or connection causing this as well.
Monday, October 18th, 2010 AT 6:54 PM