What's it gonna run 1/4 mile ?

bcuda452, It's not a tunnel ram, it's a medium rise dual plane, dual quad intake. I put this same intake on a stock(rebuilt) 440 in a 70 Coronet & went from running 13.6s @ 103 mph to running 13.1s @ 107 with NO other changes. throttle response went from great, to unbelievable, all my Chevy driving buddies could not believe it was a stock long block (375 horse cam, & 1975 400 heads) with headers. & the only reason I used the 400 heads was to get the compression down & so I could run unleaded gas. The Duster runs 14.0s @ 97 right now with a mild 318 & 3.55 gear. I guess I was wrong in thinking the 440 could pull a 3.23 gearset, So it looks like it'll be the 3.91s thanks everyone for your input !