I had a problem similar to yours, my 700R4 under WOT would
shift out of first at around 2500 rpm's, far from optimal. I also considered the B&M kit, but shy'd away from it because I was looking for a simpler solution. I purchased a Corvette governor, installed it and my first gear shift point under WOT went to 4500 rpm, I still need a little more, like 5500 rpm. I may eventually get the B&M kit,...