I found this on the National Corvette Museum site and what it really said is that with the 2001 model year an auto coupe with the perf rear is as quick as a 2000 with a 6 spd.
[FONT=Arial, Helvetica, sans-serif]
2001 Corvette Coupe/Convertible Acceleration[/FONT]
[FONT=Arial, Helvetica, sans-serif]Trans[/FONT]
[FONT=Arial, Helvetica, sans-serif]Axle[/FONT]
[FONT=Arial, Helvetica, sans-serif]0-60 MPH[/FONT]
[FONT=Arial, Helvetica, sans-serif]1/4 Mile[/FONT]
[FONT=Arial, Helvetica, sans-serif]Improvement[/FONT]
[FONT=Arial, Helvetica, sans-serif]
A4[/FONT]
[FONT=Arial, Helvetica, sans-serif]
2.73[/FONT]
[FONT=Arial, Helvetica, sans-serif]
4.90 Sec[/FONT]
[FONT=Arial, Helvetica, sans-serif]
13.65 Sec[/FONT]
[FONT=Arial, Helvetica, sans-serif]
.25 Sec[/FONT]
[FONT=Arial, Helvetica, sans-serif]
A4[/FONT]
[FONT=Arial, Helvetica, sans-serif]
3.15[/FONT]
[FONT=Arial, Helvetica, sans-serif]
4.75 Sec[/FONT]
[FONT=Arial, Helvetica, sans-serif]
13.50 Sec[/FONT]
[FONT=Arial, Helvetica, sans-serif]
.25 Sec [/FONT]
[FONT=Arial, Helvetica, sans-serif]
M6[/FONT]
[FONT=Arial, Helvetica, sans-serif]
3.42[/FONT]
[FONT=Arial, Helvetica, sans-serif]
4.55 Sec[/FONT]
[FONT=Arial, Helvetica, sans-serif]
13.25 Sec[/FONT]
[FONT=Arial, Helvetica, sans-serif]
.15 Sec[/FONT]