need 3/10th

Wow a lot of inputs, thank you guys!
Definitely i need a good moviemaker at the starting line. The clutch tammer is also a good solution, it's really hard to get a constant clutch control that's always exactly the same. I need to control the front aluminium bushing, it's in the car since 12000 mls. I rebuild the tranny every 3000 mls, i shift really fast, you hear it in the movie. Correct 1st gear ratio is 2.44, thanks for correcting!
The 9x28 shoes will fit and are on the gift list....
Going straight will be one of the main targets.
But what should my rearend do during a perfect launch? Raise in the back or stay? Raising hit the tire much more. How much raising. Firm the shock until bouncing is eliminated, or more?
If i mount some lowering blocks, the instant center moves forward, or is this a no go?