Uh Gary,
Something just doesn't seem clear here
I have less HP than your sig says you have. I use 315/35-17 Pilot rear tires, with a C6 and a 2.88 axle. I can blow the tires away at any speed, up to and over 100 mph in a 3,000 lb car that has 50-50 weight distribution.
If I want to go, I put the gearshift in drive and modulate the tire spin with my right foot
I also have a 2200 rpm stall converter that I think really helps the overall performance. What are you using?
What kinda tires you got? Is the car tubbed and running 16" wide wrinklewall slicks or what?
Just curious,
Tom