How do we blend race car and comfort?

Cope, I agree. 90% here advise people to install the 3.91's, rough idle cams, 3800 converters, and when they are done all they have is a quick car that nobody wants to sit in more than 60 seconds. I'll say you can have all the fixn's for your comfort, smooth idle, and still go 12's and still cruise 70 mph on the interstate all day. Build a torque monster with about 350 hp that runs fine on 87 octane, and keep the gears around 2.94. Or 3.55's with OD.