1/4 mile estimation

[PEWTER Z]

I'm having LT's, ORY, Hooker Catback, and a full dyno tune done next month, and would like to know an estimate of HP that I should be getting after the parts install and tune, and a new 1/4 estimate as well. My sig is below. Thanks.

[BIG D's SS]

Sig didn't show.

[PEWTER Z]

How about now?

[PEWTER Z]

How about now?

99 Z28, A4, 3.73, Phoenix Pro 3500 2.5 STR converter, NGK TR55 Plugs, Free Ram Air Mod, EGR Mod, and Lid
12.80@ 106.62 MPH best 1/4 mile on BFG DR's,
8.16 @ 84.48 MPH best 1/8 mile, 1.76 best 60' .556 RT

[02 Mag Red]

Well since the gears and the stall are giving great E.T.'s . I would say 325H.P. @ rear wheels and 350 Torque . Joe