1968 '340' Barracuda vs 1968 '383' Road Runner

This is a totally unscientific account, but back in the day one of my cousins owned a 1969 Super Bee 383, and his brother owned a 1970 Duster 340. Both were automatics, and I assume 3.23 gears. They always told me it was a dead heat any time they raced. That seems to be borne out by the times I used to see bone stock cars run at the dragstrip back then. I seem to recall that the 340s responded better to the standard gears/headers/cam/intake bolt ons.