Stop discarding good 340 engines ! !
It’s all theory, there’s some science out there to. The 340 with a shorter stroke and slightly larger bore didn’t have to work as hard to make rpms. (Pistons not moving as fast as a 360 at the same rpm) the force on the piston in a 360 is magnified by the longer stroke making more torque than the 340. Torque x rpm over 5250. Each has there advantages. Seems like minuet differences but makes an impact on the overall out come. Not saying you can’t get good rpms with a 360 but the combustion chamber is expanding faster than the 340 which utilizes more of the fuel burnt throughout the powerstroke making more power that way. As far as stock engines go:poke: