Gabe,
Check out Dana @ ProBuilt, he is in SoCal.
http://www.700r4l60e.com/
He built the trans for my SS and does real good work.
He has built some nice SyTy trans in the past and he can build them to last.
He currently has many customers in the 10's and 9's on the 700r4/4l60e.
Rick Abare is running one of his trans with over 2500 wheel pulling passes without breaking one.
http://www.advancedinduction.com/Abare.html
He will be going through my PG 4l80e build to make sure it is right, it has what parts I paid for, and to install a 32 spline output shaft.
Hit me up if you need any more info.
Oh and fwiw, STAY AWAY FROM MIKE HOY AND TORRANCE TRANSMISSIONS, YOU WILL GET NOTHING BUT BUTT FROM THEM.
See ya,