74 360 actually has more torque than a 340 in stock form. They rated HP different in 74, so you have to readjust the numbers for the net change. My opinion is that it is without a doubt the rarest and best built Duster in stock form. Inspect it really good to make sure it is a real 360 car. Most that I have seen have different interior than that one. Most also came with a 3.21 gear ratio. Old Car Trader says 22,00 in #1. Show the guy that and subtract for any imperfections below #1 condition.