Just wondering if anyone else has had issue with valve stem seals on small blocks ?? Engine has about 75k miles since rebuild, is stock 360. Have one cylinder that fouls up the plug in about 400 miles. Compression all around is good, and can see a bit of blue out the back on start up. Hence thinking that the seals are all hard and or broken. Pretty cheap fix, $50 for seals and valve cover gaskets. Figure this should keep the car running for a while yet, without pulling the engine and rebuilding, or replacing . . . engine runs great when I replace/clean that one plug !

Cheers,

Mark