Motor is in my sig. Running on my street tires and 2.77 posi. What about a 3.73 rear?

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'91 RS, 375hp 350
New paint-solid black
ROH Snyper wheels-17x9 wrapped in 275/40/17
ASCD SS hood, High-rise Z-28 spoiler,shaved handles/antenna,
Hooker super comp headers,dual 3" exhaust,two 1-chamber Flomasters,machined hi-perf GM heads,Carter 750 carb,Power Plus 360* high rise aluminum intake,Edelbrock Elite valve covers and open air cleaner,Crane 292 cam,Eibach Sportline springs,KYB struts/shocks,completely rebuilt steering linkage,36/24mm sway bars,12.7 steering box,wonderbar,145 gauge cluster,Auto meter gauges,dual guage A-piller pods,180* thermostat.
75-125 shot NOS system planned.

President-Austin 3rd Gen F-body c.c. - message board at
www.hpsmotorsports.net
See my car and others at www.ride4life.net

with the 3.73's probably high 12's, 13's without. what is in your motor, you dont really say...

Without traction, you'll be disappointed no matter what gear you have. If you do have a true 375 flywheel HP, try running this NHRA formula to get an idea of your ET under near perfect conditions.

1/4 ET / 5.825 = x, x to the third power, then divide that # into the vehicle weight.

i.e. 13.009/5.825 =2.23*3rd power=11.09, 3800lbs/11.09= 342.65HP @ the flywheel

Hope this helps.....now go crunch some #'s!

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1986 IROC, fully loaded, Mini Ram'd 383, Art Carr 700R4, Accel DFI, 12 bolt rear, etc, etc......

those numbers sound way exagerated to me, but i guess it is under perfect conditions eh?