S/C installed now I have shifting problems!!!

[Rhyno]

Hi guys, I had my Magna Charger installed and it was awsome except a mushy second gear shift. I had the corvette servo's installed and it was shifting perfect except on wide open acceleration the rpm will go to 6,000 and the tranny will not shift from 2nd to 3rd. This has happened twice. Does anybody have any input on this?

Update, this no shifting on WOT is happening ALL the time. Does any know whats wrong?

I'm taking it to AAMCO tomorrow but would like as much info as posible.

Thanks