[slodave]

I was under the impression, that valve guides may need to be replaced around 90,000 miles. Maybe I am wrong and I know that there are exceptions. I do know, that my engine has a little over 226,000 miles and has never had the guides replaced. The last few years have seen some aggressive driving. 175# on the last comp test after a day at Willow Springs. As I said, there are exceptions.

The top end $$ you gave seems about right.

Dave