Put a converter on & a blower and your car will feel much better. There is a guy online, Spence(Vicki's car) that has a 96 GT auto that runs 11.70s @ over 116 mph with bolt-ons, SVO heads & a Vortech. I think the 4.10s are hurting you because the car probably shifts into O/D before the line. 3.73s with a good loose converter would be a much better combo. Save for ported 99 GT heads & a blower and that car will fly. I have no complaints about my 99 GT auto except if I stamp it to the floor from a 20 mph roll, I spin for 2 gears with 285/40 Nittos in the rear.
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99 Silver GT
4R70W, Borla Cat Back,
SHM Slotted Rotors, custom 10.5" ProTorque 3200 stall converter, Transgo Shift kit, Redline Synthetic ATF, Cooler, Bassani X-Pipe, Vortech V2 S-trim, 3.73 gears, 70 mm T/B, Mac Adj. uppers & lowers, ROH ZR6 17X9.5 & 17X8.5 with Nittos, BBK(Walbro) 255 pump & FMS Shorty Headers, D&D Tubular K-member, Coil-overs, A-arms, MM CC plates. Currently running 3.33 pulley at 12-13 psi with AFM powerpipe. Longtubes, Cat-H-pipe, Ported stock heads & SVO Intake are next.
Dyno 7/15/00
358 rwhp @ 5600 rpms
386 rwtq @ 3600 rpms
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