1985 GT - Test your mustang knowledge, guess how fast i'll run 1/4 mile

[84LX89GT]

Ok, this oughta be fun. Let's see who gets closest to the ET and MPH i'm going to run in the 1/4 mile - i have probably a month or two realistically before i run so i'll post when i get a few runs in.

I'm going to run at pacific raceways in Kent, washington (state). approximately 600 feet above sea level.
specs:
full interior and full 2.5" exhaust, no a/c, manual windows
3.73 gears, trac-lock, 4 cyl. springs, 90/10 struts, electric fan, stock rear control arms, 26x8-15 M&H slicks (questionable - bought for $40 used). Stock T-5 transmission
GT40p heads, F-303 cam, 1 5/8 headers, 600 cfm Holley, Weiand Stealth intake manifold, MSD billet distributor, MSD ignition.

Any questions?

Also, bonus is what will it run with a 100 horsepower shot of nitrous?

Assuming nothing goes wrong i'm hoping for at least 12.90 and/or 106 mph.