Retune my entire carb after installing new heads?

DrCharles said

Interesting idea, thanks! I hadn't thought about that possibility... but is that quantity of air really that substantial through .100 holes at 15" vacuum? The primary throttles are open further, at highway cruise, so I would think almost all the airflow would be going through those bores as intended.
But even if there is some pullover through the secondaries, how is that a problem? The cruise mixture is lean where it should be... and 71/86 jetting is not unusual.

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When I talk to my mentor later today for my daily butt chewing I’ll ask him about what Bewy is saying.

I just don’t know one way or the other. We have discussed using bypass holes in the throttle plates in the past but I don’t think we ever talked about those holes causing fuel to flow from the boosters.

I just don’t know. I do remember he is pretty particular where the holes are. I don’t remember exactly where he says they should be but IIRC I *think* he said they need to be oriented to the T slot.

I need to verify that too.