how fast do you guys think my 86 Iroc could run? it has the following specs:

LG4 305
TH700-R4
2.73 rear end
edelbrock TES headers
3in cat
edelbrock 3in cat-back
K&N
direct wired electric fan

 

This is what the Drag Racing board is for.

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89 RS

STILL Looking For:
An 87 IROC-Z28 350 TPI

 

not fast, not in the 14s ud be lucky for a low 15

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1990 G92 5spd LB9 - 3.42 80,000 miles

Accel Ignition/Wires (8.8mm), Advanced Timing, TB Bypass, Ported and Gasket Matched Plenum, Synthetic Motor Oil, 160 Thermo, TPIS Airfoil, K&N Air Filters, Centerforce I Pressure Plate and Clutch, Edelbrock TES Headers, Dual Cats, Edelbrock RPM Series Catback, Homemade Ram Air, Bosch +4 Platinum Plugs

14.4 @ 94mph w/2.0622 60ft (w/o headers and catback)

14.426 @ 96.19mph w/2.167 60ft(w/headers and catback)

Also newly modded w/o track times:

Holley AFPR, Underdrive Pulleys, KYB Shocks and Struts, Crane Ignition

 

You should really post this on the organized racing board not street racing but I am going to say this.
15.9 at 86mph!!
I have seen a 130k LG4 with:
Hedman Headers
Full exhaust
Stripped engine compartment.
This is the best it could muster on the strip.
Dont feel bad though most people are highly inflated about what their cars can go.

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84 Z28 383
Stripped w/Cage back halved w/ladder bars and coil overs and 9 inch
700R-4 3.73

 

My Lg4 sports coupe wont run Low 12s

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83 berlinetta currently 350/350 3:42 gear,2500 stal,3inch exhaust,2 1/4
exhaust manifolds,comp cam 268,performer intake
L69 dual snorkle aircleaner 3160lb