Edelbrock Performer or AVS carbs for 318 dual quad?

This ^^^^^^^^^^^^

(Nice car!)

For a dual quad 318, the 500’s would work just fine though I’d run a pair of 600’s. Your set up is not very radical. You could do 500’s if you desired. The carb choice would be the AVS 2. They have an advantage over the earlier AFB style with the primary annular boosters which are really nice on throttle response & fuel distribution. The adjustable secondary air door is very nice as well.

Tune the carbs right for WOT and it'll be a screamer. You have the shorter stroke 3.31" to wind it up, then you use that cam? How high do you plan on winding this with that hydraulic roller?
On my 360 build and it's 3.58" stroke, with 4.10 gears. I haven't even considered my converter yet, my Offy is the low rise version so the plenum will be smaller and my cam is a slightly bigger SFT.
Here are the carbs I plan on using: Edelbrock 19049 Edelbrock AVS2 Series Carburetors | Summit Racing
I think you'll be fine with 2x500cfm and mechanical secondaries.

I suspect your issues will lie elsewhere... You may want to consider some STOUT valve springs.