Best 340 stroker kit?

The smaller mains have less friction and is small potato's on the street and 95% of the track. The bigger bore lends itself to a few more cubes. If you build it right, the extra cubes mean almost nothing. It becomes more of a driver issue. I have seen many of the self bloated chest pounding monkeys driving fast cars only to be stomped I to the ground by a car known to be slower.