Quickfuel carb cooler spacer - JUNK
AFB/ factory cast manifold
For me, never on a mopar and not anyone I know.
Seen issues on chevies,gm,ford though.
I never really use the iron manifolds, except once, no issue.
Air cleaner type, gasket thickness, and fan/shroud style can be key to issues like that. Heat has to go somewhere and you definitely do not want to trap it under the hood. Less clutter the better, like **** all over the fenders, big shrouds etc.
I havent seen it all, I'm just lucky I'm sure.
