Lets Have SOME Sense

You'll note that I hardly modified the exhaust port at all. What I would like to have done (on an actual 750) is to have an exhaust header the same ID as the port outlet. And on the intake, use a metallic epoxy to bring down the diameter of the port -- perhaps straightening it in the process. I'd run no larger than 36mm carbs, maybe smaller. To gain some performance, I'd run 700 heads and a set of cams that did not require a spring kit. It is, after all, a mid-sized cruiser -- not a sports bike.

If I felt that performance was called for, I'd run as large a bore as I could (maybe netting 805cc) at 11:1 compression, 12:1 if I could find someone that would make them, an aluminum-topped spring kit and a race cam. I still would slim down the ports and run a maximum of 38mm flat-slides. I'd consider such a beast too volatile to be a daily rider.

More to come . . .

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