ok nitro you lost me on torque arm ive never been under a firebird of any year. as far as driving i do have a heavy foot at times, my 400 trans has b&m shift kit and 2000 stall converter and i have slung out my carrier bearing and u joints on mt truck twice. ive owned this motor for 5 yrs and done nothing but put on a starter and alt, all i know about the motor is it has edlebrock intake,041 heads,qjet carb,roller tip rockers. the guy i got it from didnt know if it had been board or not. seems to have lots of low end torque. rolling at 15 or 20mph i can break the tire loose.