[Super73]

If you ran the 5.13 with a 28" tire now that would probably be a good gearing combo for your current set up. That will allow you to go 90mph assuming 15% slip at 6,500rpm. This will put you about 3,250 at 45mph.

As you step your game up and need more mph, you can easily switch to a 30" tire and go 96mph assuming the 15% slip and your 45mph rpm then drops to 3,000rpm.

When you put the big block in, a 33" tall tire with 15% slip and 5.13's will allow you to go 106mph at 6,500 rpm. This will drop your 45mph rpm to 2,750.


Do you see your getting it to go beyond 106mph in the 1/8?