i am in the process of rebuilding my 72 cb and came to a point of not being able to choose. i was given a cb350f and a cb400f engine with the bike. i don't know which one to use and doing some searching the power isn't that much more. the 400f is heavier, making the any horsepower more seem to disappear.. or is it for the torque and the 6 speed??? hhheeelppp. thanks fella's
