650 Mechanical vs. 680 Vacuum Secondaries
This topic may have been beaten to death as far as theory goes, but I have a seat of the pants question.
I have a 383 stroker going in my 1969 Camaro next week. The engine is on the mild side with stock Chevy 1.90/1.60 heads, CompCams hydraulic roller part #12-420-8 (.501 lift, 215 duration @ .050 on both intake and exhaust, 110 LSA) 10.0 to 1 compression ratio, 2.5 in. dual exhausts, full length Hedman Headers, 200-4R overdrive automatic tansmission and 3.73 posi rear end. Power steering, power brakes, and front disks.
The car is street driven only, it is not a daily driver, and I want the best seat of the pants pull that I can get from this combination, especially at low speeds or from a stop light.
I am considering a Quick Fuel 680 cfm vacuum carb vs a 650 mechanical carb. I talked to Quick Fuel today and they did not recommend a 750 cfm carb.