318 1/8 time improvement

I heard about draggy app honestly I live on a boulevard. Its like drag race city on fridays lol

Do you think a 650 or a 750 double pumper would be a better choice. I think just the switch over from a vacuum secondaries Holley 600cfm to a double pumper would help my 60ft.
Both can work great, but I like the 650 in this situation