Seems a little slow...
Maybe the aerohead heads are leaking or poorly ported, i have not heard anything positive about aeroheads work. the car might go much faster with a smaller cam IE.. more cyl psi for better low end = faster 60' I would try a cam swap if the heads are ok to something in the 220 to 226 @.050 with a 475 to 500 lift. your times don't seem to far off, but 60' is bad