After doing a little studying over the weekend I believe whats going on here is it is Dead Hooking the tire. I may need to up my PSI a few and perhaps soften the rear shocks some. We shall see.
After watching the video it looks like a bog, probably going lean? I agree with Mderoy that it probably wants more initial timing and then you can start tuning the accelerator pump circuit with pump cams and nozzles.
