Yes sir I have these in place. Took the head off last night and it is obvious that #7 exhaust valve is leaking oil pretty badly into the exhaust port. Not sure why #8 was showing no signs of leakage though as it had oil on its plug threads too, just not as much. Going out now to take the other head off and shoot them on back to the shop. I will tell them to check all valve guide clearances and hopefully they will do a reasonable follow repair on these puppies. I am on a budget with this car and have a wife with a lot of medical problems so even though a complete valve guide and valve replacement would be the right thing to do, I'm going to see what they have to say after getting them back a second time and hopefully for now address the problems at hand and get a little more life out of the existing parts. Thanks again everyone for taking the time to help me and I'll let you know the outcome hopefully soon.