I have a new 383 stroker with 10:1 comp. forged srp pistons, nitrous hp cam, .496 int. lift, .509 exhaust lift, 1.6 roller rockers, stock heads with 2.02 intake valves, street dominator intake manifold, speed demon 650 mech secondarie carb, mallory unilite distributor, msd 6al box, im running 18 degrees advanced initial timing, plus a 100 shot of nitrous, all mated up to a muncie m21 4 speed and my question is how do i get a better time than a 16.2 at the local race track [LACR]

any suggestions on timing or carb adjustments would be greatly appreciated