What will my 68 Dart 408 run in 1/4 mile?

Just for fun I'd like to see what people think my 68 Dart will run in the 1/4 mile? Also this will be my first time running the car and setup. My only other drag race experience is with AWD twin turbo Stealths and 3000GT VR4's.

My setup:
1968 Dodge Dart
4 speed manual- 23 spline
408 Stroker (485 hp/511 tq)
MSD 6AL2
Aluminum radiator
28x12.5R15 Mickey Thompson ET Street SS on steel 15x10 rims
All steel body
Full interior
Quicktime bellhousing
Chromemoly driveshaft with 1350 joints
Driveshaft loop
Hydraulic Hydramax clutch with Centerforce Dual friction
8 3/4 with Moser axles, Auburn Pro LSD, Yukon 3.55 Gears, 489 case with crush sleeve eliminator
Xhd Mopar leaf springs
Kyb shocks
Stock 318 V8 torsion bars
3 inch exhaust with turn downs at axle
4 wheel drum brakes

So what do we think it'll run? :)

Also any suggestions for launch rpm? It's got a 2 step so I'll set it at the recommended rpm

It gets dyno tuned on the 20th of this month so i hope to be out at the track within a week or two of getting it tuned.