Funny you ask, I'm driving to Cartek http://www.cartek.net/ tomorrow morning to drop off my business partner's 98 Conv. Vette. He's doing the stage three heads & cam , ported LS6 intake, 3.73 gears, 2400 rpm torque converter, TPIS longtubes and all the littel stuff that comes with the package. The've been excellent at answering all the questions & concerns we had. I'm driving my Z down there (CT. to N.J.) His car should be at around 410 h.p. @ the rear wheels (470 gross) The dyno numbers are guaranteed over 400. That's a ton for an automatic car. With sticky tires should turn mid-elevens. Boy what peer pressure! Should take about two weeks. I'll post the results.