Cyril.... How are you launching the car?

Your numbers are way lower than what I got.

Are you power braking it before you launch it?

With it in 1st gear I held the brakes and brought the rpm up to around 2,400 rpm then let it go. I got 5.3 second to the shift into 3rd gear... About 57 mph. I launched it in 1st gear but let it shift it's self for consistancy.

Dave.... Have you done any timing tests?