[DMXF]

Ernie - Aside from chassis setup, etc, if you want to keep that transmission you may want to try a tad taller rear gear, but it doesn't sound like you're too far off. I like comparing aspects to other cars that "work". Taking into consideration the entire driveline, incl tire sizes, a Cobra with 3.31 rear gear and close ratio trans is about 10.4 mph/1000 rpm in 1st gear. Your TKO-600 with 3.31 rear is 8.4. For reference, a Viper SRT10 is 9.6, and Z06 is 8.4. A 911 GT2 is 7 and Nissan GT-R is 5.3, although I trhink those may be all wheel drive, which is not directly applicable. The Viper and Z06 seem to be a good range for a rear wheel drive car. If you went to a 3.07 rear with wide ratio toploader type 1st gear of 2.78, you would have 9.3 mph/1000 rpm, which seems to be a very likeable combination with great top end too.