Stop in for a cup of coffee

Rainy Day Auto said
Do you guys think a 273 carb would be enough to feed a 318 or would it be better to use a bigger carb

Edlebrock 1406 600 cfm carbs are working good on our Stock, and Performance 318s here. These are the 4 barrels.

If you can find out the CFM on the 273 carb you have now then that will help.