Auto Transmission -Need help

[Foose04]

Well another swing and a miss on 10's. I got two runs in today, first run the wideband error'ed so HPTuners didn't spray so it was a nice fat pig. Next pass all went good but the extra power isn't going to the tires.

Question is, is this converter or transmission slip?

I run a built 4l80E built by CKperformance rated at 1000HP and a circle D 9.75inch triple disk converter stall speed of 3200-3400 but is easy to footbrake to 3700-3800.

Truck drops about 700 rpms between shifts but within .5 second its right where it was in RPMS before the shift. Nitrous run I was in second gear for 1.9 seconds, 3rd gear for 7 second, 6 of those seconds between 6100-6200 rpms. Like I said it seems with more HP it gets worse and also just seems to be getting worse anyways. Trans temps have never been over 200, usually around 150-160.

Here's couple clips showing how it shifts different with less power and then on the clean run. If you have high speed, select 1080p to see the tach better and full screen that sucker. GoPro Hero is the shit.

http://www.youtube.com/watch?v=HzFUuCJJOl0&hd=1
http://www.youtube.com/watch?v=aObU1C3yMAg&hd=1
http://www.youtube.com/watch?v=6L7G8azIIOw





Thanks in advance.