Well I've been studying some of my 90~93 HARC Pro spec' sheets and they are down in the 170's too, and that's on pre-mix! My F3 carbs are in the 160's, so I'm guessing there's plenty of room for improvements!

I'll put a hundred miles on it (er, maybe!!) and pull the heads to see what it's doing. Then I expect we'll be doing a Franz Klammer with the jetting, and maybe even going to 0.4mm base gaskets!!
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Andy.
NSR-WORLD.COM

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