What is the tranny of choice with the 12 valve swap? Might have to start looking into this and make this an out of state rig.
If it were me, I would get a 47RH auto from Dave Goerend and his converter. It will be bullet proof for anything you are planning to do. I have a 47RE and his triple disc converter in my Dodge. It has pulled a 12,400 lb trailer flawlessly and handled some hardcore chassis dyno sessions without a burp.
