Originally Posted By an8sec70cuda
Especially considering it was the exhausts and not the intakes that were worn.

I had a set of BB iron heads that had less than .0030 guide to valve clearances that had oil running down them onto the top of valves that I saw when removing the headers puke
That was back in the days when some racers didn't run valves seals on the exhausts, me included realcrazy work I started running them after that up

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)