What find funny about this over carb debate is even the people that push smaller carbs generally over carb themselves, just about no one uses what the formula recommends, (cid x rpm / 3456) x VE% = carb cfm @ 1.5" hg.
A basic 5000 rpm peak hp 360 probably around 85% ve = 443 cfm
Same spec 318 = 390 cfm,
same spec 273 = 336 cfm
". 225 = 277 cfm
". 170 = 209 cfm
Even a similar 440 = 541 cfm which is 59 cfms smaller than the standard 600 cfm carb that's recommended for mild small block applications.
Even if we crank hp peak to 6000 rpms @ 95% ve it raises up these carb cfm numbers 34% eg. 360 = 594 cfm that's a pretty healthy 360 and all that is recommended for is a basic 600 cfm carb so 90%+ 360 and anything smaller are pretty much over carbed, even a 440 @ same specs = 725 cfm less carb than most would run on milder smaller V8's. If 1.5" hg is the goal most of us are over doing it.