750 Edelbrock carb

I just removed a great working 670 Holley from my 318, and installed a 750 holley that's working flawlessly. I said that to say your carb is not too big. I have basically a stock 318 with a mild summit cam and home ported heads. Not a flutter or flaw, even mashing it out of the hole with 2.76 gears and stock converter.
My timing is 20* initial and 40 full advance. It's where it runs the best.

I will say I'm more of a Holley fan, but i started with a 600 eddy and couldn't get the flutter out on off idle mash. I tried springs, squirters, and adjusting the accelerator pump. sold it and pieced together the 670.