Edelbrock 1407 issue

Rat,
All fair comments & agree totally with you that the original gaskets were no good.
In my opinion, it was a fundamental failing by Holley for not designing a better gasket system from day one. Those gaskets would dry out, shrink, crack etc if the engine sat for awhile & create all sorts of weird problems.

That’s is a FACT!!! Shame on Holley for keeping that junk on the market for so long.