Converters..... either PI or circleD If you are staying NA then a single disc will do. If you are going PA down the road you will need a multi- disc which is about $1000. Don't use transgo crap. Go to
www.tccoa.com and look at the J-mod tech. You need a set of drill bits and $4 worth of seperator plate gaskets. Very easy mod to do yourself. VERY firm shifts when you want them. And stall speed is completely dependant on the torque the motor produces. My 3800 stall would likely flash up to well over 4500rpm behind a torquey motor. If you don't plan on racing with slicks or DR's then don't waste money on a converter.
Adam