Retune my entire carb after installing new heads?

DrCharles said

Let me know what you find out!
I think your memory matches mine (holes in line with the t-slot)... I bought the carb with the holes from Brad Haak, who knows a thing or two about Holley setup ;)

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Ok, Bewy is correct.

You can get the boosters to drip fuel at a cruise IF the conditions are right. And that’s about where you are.

A big(ger) hole in the secondaries and cruise vacuum at 14 inches or above can cause the secondary boosters to drip.

Bewy was correct.

I don’t think I’ve ever seen it, but I don’t ever recall using a hole more than about .080 in the butterflies.