Dyno proven 450-475 HP. ET Guesses???

[jz_mustang50]

My engine builder is setting me up with a package that will make 450-475 HP (at the flywheel) for next season.

He says it makes max hp around 5800-6200rpm's. He also said its dyno proven HP not just a BS package.

I dont have all the details but this is most of it just for your information:

306, Stock block, crank/rods. 9:1
Canfeild 2.02 alum. heads
Custom made cam
Holley System Max Intake
75mm MAF
70mm TB
30lb/hr injectors (might run n20 later)
1 5/8 long tube headers
Matching off road h-pipe

The list of mods to my car to date are in my signature. I'm planning on getting a Lentech AOD w/ a 3000-3500 stall (not sure yet)
And 70/30 and 50/50's. W/ some drag springs

If anyone could guess, tell me what it would be before the suspension mods and tell me what it would be after....

Thanks!!

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Joe Zemaitis, Grand Rapids Michigan

1991 Mustang GT. Mods to date: 4.10 rear end, new POSI, aluminum driveshaft, AOD w/ shift kit, 2 1/2 off road h-pipe, 2 1/2 flowmasters and 2 1/2 tail pipes. Electric fan, Removed air pump and egr tube. Hotchkins upper and lower control arms. New energy suspension rear busings. Hoosier Quick Time Pro 27x10.5x15 and bolt on subframes soon to be welded. Everything else is STOCK. Totally stock ENGINE. 14.29@96 with 130k miles.