This again.... 4bbl on a 318 with a 2bbl

George Jets said
Had an AVS2 on a 318 and it bogged. Put the same carb on a stock build 360 and it ran perfect.

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Believe the 650 cfm AVS2 just needed a little more displacement to pull the fuel properly.

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I'd not be the least bit surprised if Edelbrock "tuned" the carbs for a typical 350 CID engine and called it good. Not like they can run every combo.

Also the problem isn't going to show itself in a dyno cell so again another chance to miss the issue.