This is the dyno, WHP & torque, per the SVT collateral:

The chart Superchips have looks like cr*p to me.
BB
Edit.. here's the link: http://www.geocities.com/motorcity/shop/1942/svt4.htm

'98 SVT #53 of 6535
Born on 3/26/97
Reborn 8/21/01
MODS:
Driver v 2.0