I have the 700-R4 in my car now but I am very seriously doubting it's going to like the 400+ hp going through it in it's stock form anyone have an suggestion on beefing this thing up or should I just go with a th-350? Thanks in advanced.

 

beef it up with a professional rebuild to handle the power. ha, around $800-1000 w/o torque converter, shop around.

 

You need to talk to Probuilt Automatics. From what I understand, his trannies and rebuild kits are the best. Just PM him, I'm sure he'll help with anything you need.

Jeremy