I seriously doubt VHM's will give more than about 1hp over NSR heads, if that, and don't reckon carbon reeds are worth all the hype, but HRC rectifiers certainly DO seem to help the MC28. I do agree that the bike is probably making 55~60hp though, and that open carbs/HRC airbox (if not set up like that already) is the way to go to get up to 62~63hp.

I've yet to see an MC28 with standard internals make any more than that. They won't make the power an MC18 or MC21 does without getting the grinder out!

VHM's are great for ease of use though. With the O-rings instead of a gasket you can pull the heads off in no time and at no cost after a plug chop, which is far better than trying to accurately read spart plugs and risking head £10 gasket failures by trying to reuse them! You've got to use quite a few £10 head gaskets to pay for a set of VHM's though!
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Andy.
NSR-WORLD.COM

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