I use a trans king electric vavle body. In my opinion you can't beat them. Everything is done inside the valvebody, just put a chip in it and let it shift itself. 1 12V wire to the RPM activated switch and 1 ground, thats it and the shifter never actually moves!!! However I have a powerglide, I'm not sure if they make one for TH-350 or 400. When I first got the car out I had a TH 350 in it and had a B&M ratchet shifter with a shiftnoid that worked flawlessly. It's for sale too!!!!
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