Thanx for all the responses, now for my bit.
Yes the VX kicks into 4th before the end and it just won't accel once it hits it.
As for the gas I was planning on using a half tank 92 and a half to 1/4 tank of 112. I have tried to leave it in 3rd but it will still kick into 4th for some reason. I actually haven't put it in 3rd with the SC yet, maybe it will stay in 3rd for longer than before?

Spike, I couldn't understand your jargon

I'm sure that I will hit high 15's once I get to do some more runs, my first few runs are never my best anyway.

Jolly Roger, I have already changed my tires back over to the stock ones, and it made a .12 difference

Heres a question, If I was to disconnect the front drive shaft, will the TOD still be running and take power away from the rear wheels? If so I can install that TOD on/off switch. I also would like to disconnect my rear breaks so I could burn them at the track Is there an easy way to disable the rear breaks? There is a guy that takes proffesional pictures out there and I would love to have a picture of my VX burning some rubber!