My oil burning pig. Pics too!

BTW, I found this on the Hughes site on the RHS heads; not sure if this is your head exactly or not, but you can check at this link to see if all this applies: http://www.hughesengines.com/TechArticles/8laxandmaxironsmallblockheads.php


"The maximum safe lift at the valve will be about .500", like the OEM LA style heads.
anymore lift than that and the guides will need to be shortened to prevent seal damage.
These heads would use our #3806 valve stem seal. Remove the garter spring on the seals."

And your valve lift is?

And this note in the description of the Hughes seals (which sound like you Comp ones): "All valve stem seals must be installed with the protective sleeves and the proper installation tools. Failure to use the protective sleeve may result in tearing of the seal. Valve spring shims or cups should be installed before the seals are installed."