Two Barrel to Four Barrel Upgrade?

I'll say this-

every single Edelbrock carb I've ever owned, including dirty, $50 swap meet ones-

ran acceptably upon initial installation with no excessive tuning other than setting mixture and idle speed.

I believe I'm up to seven now including 500, 600 and 625 on 318's and 600 and 750 on a 440 (the 600 did lean surge but otherwise ran OK)

The worst thing I've encountered was a clogged accelerator squirt nozzle.