So about half way down the strip was as far as I got on Saturday night. Massive axle tramp and a munched up 4.125 diff centre lol.
I fitted a 3.77 today and to be honest it's the best thing I've done. First gear is now 'usable', more MPH from each gear (still picks up fast) and accurate speedo!
Another night planned for Test & Tune at Willowbank. It will be good to record a time, wish me luck. Cheers