Here is the way I see it and I may be wrong I'm far from a racer or engine builder im just a car guy who likes old cars. But to get to 410 you start with a 360. A 340 stock for stock will make more power (depending on the year) I know for a fact a stock 360 is nothing to to write home about because of the big dished pistons and smog heads and less then stellar 2bbl carb and small cam.
Now take that 360 put flattop a 4bbl and a little cam your right with the stock 340. Then adding more cubes by stroking it gives it an advantage. Not to mention a higher rpm limit. So just assuming that everything else is equal ie heads,carb,cam, scr, the stroker has the advantage simply because of cubic inches and a higher rpm. Now throw on a set of dual quads we have our winner. ;) well in theory we will never know cause this thread is two years old and the race has never happened lol. Hint hint Haha