Pulled all the guides out the troubled head and #3 Intake was shot. Valve was worn under the limit and the guide was .006 off the max limit. a few of the exhaust guides were at or over the limit too but those valves were fine. The old guides were knurled and must have been reamed too large or may be to small as #3 had some bad scoring. Good thing is that I have 8 exhausts to choose from and 3 are under .004 of a .008 max valve stem deflection. Still waiting on guides......:-(
