A friend of mine "permanently" loaned an RPM intake to me, and I was considering installing it on my '70 383. I was wondering if it is worth the effort to block the heat passage ports that pass under the carb ? Will this benefit keeping the heat away, or am I risking damage the top end by trapping the heat in the heads ? If I do block these ports, what's the best method to do so, or does someone offer a sturdy enough gasket that accomplishes this ? Any, and all feedback is appreciated, Thanks...
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