800cfm on mild 360 ?

AFAI Recall,, Carter rated their 4bbl carbs, differently from the way Holley rates theirs, And if that is true, then you cannot directly compare the two. I used to know the conversion factor, but sorry, it fell out of my memory banks..

The Thermoquad secondary air valve can be adjusted from mild to wild, and that is why you can install it on almost any V8, with good results. I try to use TQs on everything I own. They have very nice Primary Boosters.

Would I install an 800 onto a 340? IDK but if it had a factory or bigger cam, then it sure wouldn't be a shiney metering-rod carb.

I'm happy, very happy, with the 750DP on my street 367. If I was to go bigger, I think it would have to be a spread-bore. But Like said, I'm happy at 750.