I am going to dyno my head, cam, TBSS intake 5.3 on sat, and would like to get some N2O numbers too, but am worried the trans wont hold. I dyno'd with a built trans, and had no issues cam only. Trans is a 12k mile 4l65e out of a non modded 06 GTO. I put my old HD-2 shift kit in with vette and sonnex servos. Stall is a circle D multi disc 3800. Shot is a 100 shot, 90mm plate, 52n/28f. I was gonna get N/A numbers then swap plugs for nitrous numbers.

 

Mine is still holding up under the 100shot and im way heavier than you...

 

I just made a pre-cam pull (402/455) with my stock trans with HD2, servos and 40k cooler with no issues.

 

It will be ok your gonna spray it at 3k or so in 3rd not from a dead stop, which is what usually breaks them.

 

My bone stock 140k mile 60e held just fine in 3rd on a 100 shot.