[village idiot]

Valve guide replacement is something your average home mechanic will not be able to perform. You will have to remove the engine and disassemble the top end in order to have access to the guides.

I am at the same point as you. My car smoke quite a bit and though it runs great, the smoke is annoying and embarassing.

I bought a complete set of used heads from another member here and sent them to Henry @ Supertec to be rebuilt. I just have to work up the guts to drop the engine and actually perform the necessary work to replace them.