I was thinking about that too because it was smoking really bad before.. and that oil baked on the insides of the pipes and all......
I probally put 40 miles on since the new valves seal installed..
one thing is ... it does not smoke at start up anymore or hardley anything when at cold start . . but once it warms up just when you put the hammer down it smokes yet... a mechanic told me it has a sticking ring ... and to try that marvel mystery oil .. run a pint in the oil and drive it easy for a short time... maybe it would loosen a stuck ring.
what do you guys think of that ideal ???