Edelbrock Heads for 318

Staying on the technical side of things...using 120mph (10.90s) in a 3000 lbs (estimated average A body) car, you need roughly 400hp to the tires (475ish at the crank). I say roughly because the more scienced out the entire car is, the less power is required. A mentor of mine ran 11.15 (4 or 5 NHRA Stock Eliminator national records during those years) with a 9.5:1 stock intake, stock carb, stock lift hydraulic cam, and manual trans. That was a 351 Cleveland hydraulic cam engine in a 1971 Mustang..Not a lightweight with the 6 pt steel cage. His last inspected legal winning engine made 485hp at the crank. That 475 is well within reach of a 323 inch engine on pump gas and a hydraulic cam. Especially if the car is geared to take advantage of that power band...
If the rough ratio is 2 hp per cfm for an "average", all it takes is 225-235cfm. While IMO a stretch, I dont see why a set of well worked 302s couldnt flow that. And again, with the more scienced out package, even less flow would be needed.