not really a kill but
 

was on my way back from marion last nite and passed a early to mid 90's gta and after i was about 5 cars in front i saw him coming up hard so's i stand down and was able to hold him off before we got back in town. if its the one im thinking of its a 305 5 speed car. anyone know anything about the old gta's?

God I hope it was a 350 if you were only able to hold him off. The 305's are complete dogs, my 4.0L Ranger could waste one.

As far as i know the GTA model came with a 350, no idea on the power level.

i found out the next day that it was a mech. that i use sometimes! he had just put a new 350 and trany in the car.

Low 14's around 98 mph in one of those in good shape with a 350. They're better than the IROC's.

All the GTA's I saw run were usually slower than the IROCs. They were a heavy car.

Embaressingly enough... I'm a former F-body junkie; so I can speak with relative knowledge on the subject. The GTA and IROC-Z is exactly the same car with different interior and body front quarters/nose shape. The GTA is was little heavier in 89 & 90 b/c they put more 'goop' on it for looks (goop meaning abs). As for powertrain, the put both the 5.0 throttle body inj T-5 5 speeds with 3:23 rears, and 5.7 TPI TH400 autos with 2:?? rears.

All it really takes to beef them up to compete with a 5.0 or 4.6 GT is a 3:73 or higher rear and a few mods to the 5.7... I dropped a 350 4bbl carb in my old 87 Z-28 and popped some fresh 3:73's in it and the car was a beast...

And then I bought my Cobra and woke up to reality.
Anyone interested in an 87 IROC-Z??? New rear... quick. Only $1500

:p