what does the car weigh? you'll be pushing the typical stock block survival limits, I come up with around 600 crank at 3000 pounds to get in the nines give or take. everything else matters though, it's not all about HP. Suspension is key.
4.56 is a lot of gear in my opinion, unless you have a really tall tire.
..5.95 @ 115, 1.30 60', naturally aspirated.
1991 notch, dart block 427W, , AFR225's, super vic intake, solid roller, UCC 8" converter, glide, Carbureted E85, 28" radial.