No Traction

[Chris Garrett]

Hi guys,
If I go more than 1/2 throttle, I can't get any traction. The tires spin and the backend fishtails out of control. I have MT street radials. I have kept them at 35 psi which I think is part of my problem. They have about 4-5k miles on them.
My question is could my torque converter be causing this? I have a Vigilanti 3200-3400. My mods are listed below.

2008 rebuild, Comp roller cam, Cat stroker, RJC gridle, CPT66BB, PTE Stock Location IC, Champion iron, T&D roller rockers, 60# Mototron injectors w/Turbotweak chip, Monroe-ported throttlebody, RJC Power Plate, Jimmy-built trans w/Precision Vigilante converter, ATR SS dual exhaust, ATR rear sway, BMR upper and lower control arms, Edelbrock Performance shocks, Razor alky, Tinman cold air intake, MT street radials.