65 barracuda 273 commando

66fs said
The 500 cfm Edelbrock bolted up fine to my stock Commando manifold. The old 500 cfm Carter would not. The Carter used the same throttle bores as the 600 cfm, then they played with nozzle sizes to get it down to 500 cfm.
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I stand corrected. An Eddy 500 cfm still uses the 1 11/16 secondary bores while the original Commando AFB uses a 1 9/16 bore. Sorry for the mistake.