Intake manifold won't seal - How do I check it ?

Cudafever said

I have not heard any thing about all the BLUE smoke that should be pouring out the tail pipe(s) or the oil soaked spark plugs:poke:

Click to expand...

That relates to my question about the intake bolts. Had a 340 Challenger in which the fully threaded intake bolts were "replaced" with bolts that had a short shoulder on them. Bolts were tight, all seemed well when, in fact, the shoulder was stopping the bolt from threading into the head further - reduced clamping of the gasket. Car ran and idled okay. But on the highway when you let off the gas it produced a pretty impressive James Bond style smoke screen as engine vacuum sucked oil past the gasket at the bottom of the ports.