If you do a converter change out, shop around for a good one to allow for an upgrade, to get a better performance out of your combination. Do a little reasearch, before you buy. I am presently running a 2400 stall converter in my 700 R4 tranny, due to the cam that I am running. I would recommend the comapny that I chose from for a converter. They are at this website:
http://www.gopnh.com/