Installing a 4bbl on a 273 advice

A 500 Edelbrock is a great carb for a small street engine. I have run them on several cars up to 451 CID (street for you racers) Even my Hemi 472 (ok I used 2 of them) loved the 500.
Kursplat's car I installed a 600(because it's what I had) with the Edelbrock 318/360 performer that has the small ports.
A small cfm has great throttle response on the street as AJ/FormS has pointed out.
So many over carb on street driven carbs. Hell I have 1 800 AVS on my 472 Hemi now and it's all I need on the street.