Thanks for the input. Yeah, I think I'll give it a try. Maybe I can find the more serious problems and eliminate some heads, then have a shop do a more thorough job before I invest in a valve job etc. Thanks again.
When you bring a set of heads into a shop for any amount of machine work they will usually Magnaflux them to ensure THEY don't work on junk heads. If the heads are good then the job proceeds and the Magnaflux charge is part of the cleaning charge and it doesn't usually come close to $100.00/head---maybe $100/pr. If the heads are cracked then you can be expected to pay the cleaning/Magnaflux fee. Again though most experienced shops can spot cracks with just their eyes because they know where and what they look like--even under a layer of heavy carbon/crud. J.Rob
