Well now that I have the 3.55 gears in, more fun to drive, but hiway cruising sucks and fuel economy went from bad to horrible(Holley is part to blame, need to get a Qjet). I have read past posts on this upgrade, but just to be sure, from what I understand,200R4 is a direct bolt in, just need TV cable vs 700R4 you must get a bellhousing, shorten driveshaft, move crossmember back...too much hassle, so if I find a 200r4 which is built up to handle 450hp, my stock 389 should be ok...question I have is my his/her shifter, I actually use it a lot to shift manually, how will that work with 4 spd auto since there are only 3 slots for drive on the shifter...Do I need to get another shifter, I would hate to take out the stock shifter.Those of you who have upgraded to 700r4/200r4, what did you do?? thanks greg
Greg Bower
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Greg Bower
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