What the heck, I will throw in my $.02 worth. A 340 is far superior to a 360 due to forged crank, full-floating rods, windage tray, 2.02 intake valves, etc. Yes, the slightly longer stroke of a 360 will give you a little more low end torque, but in my case ('65 cuda with small wheelwells) the last thing I need is more low end--my tires are already overwhelmed beow 4,000 rpm, so I would rather have the hp on the top end.