340 or 360?

First, I love the 340's, always have and always will. But, here are some fun facts:

• Lady I knew bought a brand new '72 Demon 340, auto, 3.91 gears. 100% factory stock EXCEPT slicks, it ran 14.2's.
• A trusted friend of mine had a friend that bought a '70 Duster 340 4-speed brand new (either 3.91's or 3.55's). His mission, with just tuning what the factory set up and slicks, was to run a 13.99. He never made it. Multiple times out to the track but couldn't get past 14.0's, with 14.1's being the consistent run.
• Most magazines have most 340's from the factory in the lower to mid 14's, and '73 340's in the lower 15's.