going to dyno soon, any guesstimates?

[bigwhitecobra]

I have 2 hours of dyno time coming up on April 5th. I'm going to pull both cars, and maybe sneak in the ThunderChicken. On the Cobra I have the usual bolt-ons. The GT has already been pulled once, but since I've got her running right, I figured I'd pull her jus tfor the he11 of it. The GT's first ever pull netted an impressive 480. I think that since I've tuned her a bit, and adjusted as much crap as I can without the dyno, She maybe n the 525-550 range. Any guesses?
The Cobra is the one that scares me. I have no real idea what she'd pull. Any thoughts on her would be greatly welcomed. Later.

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The Black Mamba 11.2@124
94 Cobra- MAC cold air fender kit, Motorsport underdrive pulley's, MAC 21/2" off-road H pipe, SVO mufflers, 3.73 gears, E-303 cam, 13.417@101.335mph