The instructions that came with my 800cfm DP says "warning dont use this carb with an automatic trans with OD or damige to trans WILL result" WTF? i have a th350 so there is no OD but still this does not make sence to me. all those guys running 700r4's have to use vacume secondery carbs?

Doesnt make sense to me either?????

the kickdown cable stud on your d/p is in the wrong spot for 700/200 trans. A geometry corrector bracket shoud be used with o/d trans.
Will be fine for you th350.