Realistic Expectations - 11 second Demon weekly driver

My 70 Charger in full trim weighing 4000# ran 12.30 with 3.55s ...stock bottom end, 8.9ish comp, ported 906s , .550 solid roller, Hooker headers and full 2.5 exhaust, 6 pack intake.....
Daily driver for several years... 14" @ idle....
Stuff that in a 3300lb abody.... No problem...