340 or 360?

If you are looking to clone a 340 a body you could always do what I am going to do-build a 360 for less and say it is a 340. Unless you do a magnum with magnum valve covers , at first glance most people won't know the difference.
20 cubic inches doesn't sound like that much more but you would be looking at 20-30 more horses which translates to 2 to 3 tenths quicker.