Anyone want to help pick a good gear for 1/8 mile racing for me?

Car is a '67 Satellite, weighs 3800 pounds with driver. Mild 440, hydrualic cam, Performer RPM intake, 850 DP, 1 and 7/8" headers, Dynamic 9.5, 3.91s, 27" tall tire. Best time so far 7.96.

Right now, I shift into third right before the stripe so not the best. I drive it to the track but I'm willing to put up with a lot for lower ET. Thanks!