Don, VERY WELL SAID. Air Velocity Probs, also help giving feedback to the Air Speed, in different locaions within the port. So Cross section, air speed and Valve Jobs, taper, and CFM all give some feedback to help guide a very good Head Porter/designer, as well as a very good enginer designer/builder. One of the very nice things about your DCI Ram Air V castings, is the fact that it allows many different engine sizes and Rpm ranges, example, roadracing, drag racing, street/strip cruisers. PLUS they FLAT OUT just LOOK KILLER!!!
