Hot Rod Magazine, of all things, had a great article about the pros and cons of each, and built a 350 chevy, utilizing a 400 block, short-stroke crank, and ford I-6 rods; very long rods- 6.3 inch vs stock 5.7- combined with a 3.25 inch stroke to produce a rod/stroke ratio of 1.9 vs stock 1.6-...