sorry i didn't read this til i posted.
not exact car but here are times w/ mods for some of my old cars.
1990 GT aod = 3.73, shorty headers, dynomax , sprtsman pro's , gt40 intake,pullies, low gear set (1st is now 2.84 instead 2.40 and 2nd is 1.55 instead of 1.47) transgo shift kit, 2200...