Please let me know if I'm wrong. You think that excess gas tank pressure is causing the engine to stall? I kinda doubt that. Might cause a failure on emissions tests.
Try leaving the gas cap loose for a test run only. If that fixes the problem, then let us know.
I personally doubt that gas tank pressure is the problem.
Rev
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'66 Coupe, 306, 300 HP, C-4, 13.97 e.t., 100.3 mph
1/4 mi.
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