If you are worried about not being able to control the auto transmission, check out the SupraStick auto transmission computer. It's a full standalone controller for solenoid operated transmissions. You can control shift points based on TPS and RMP and/or manually paddle shift. Pretty cool. You can also beef up your tranny by putting in high performance clutch packs and shimming the accumulators

 

Wife doesn't drive stick and I'm only "allowed" to make it fast if she can enjoy it too