To make any motor RPM quicker, the key is in the weight of the rotating assembly. That's why people knife edge cranks, use crank scrapers or windage trays, titanium valves, titanium retainers and keepers..its all in the rotating mass. Regardless wether is a short stroke or long stroke, the same rule applies, get the weight out and get into your powerband quicker. Launch as close to peak torque as possible, and shift within 200 RPM of peak HP. Seems to work.
Ron
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