[TerminalVelocity]

the turbo hydro 400 is defentally the way to go with a zz4, and for the street eather go with 3.73's (or is it 3.83s?) for just pure hauling ass, or as the man said, 3.18 would be a great gear for crusing, and would help to launch, ,a lil slower but you would get traction, and have a great top speed. As for mounting...it should be mounted like any other chevy of those years, front mounted. (flywheel pointed twords rear)