Jack, you're a hoot! For the record, lest the unwary be misled, what I had to say about the Taiwanese "billet" clone of the 250-00 was that the thing is badly designed on several scores. First, it has a 2-point bolt-on sprocket, and you can either mount the sprocket on two holes or two slots. Theoretically, the slots permit adjustment for degreeing in the cam; but if you'd trust a pair of 7 mm. screws to hold it in place on the slots (as opposed to the conventional 3-point mounting), you're a lot more trusting than I am. If you mount it on the holes, you'll have to degree in the cam by adjusting deck height carefully, which means you don't have an easy way to select the CR you want to build to.
The second issue is that the mounting boss for the sprocket isn't balanced; it has two heavy extended lugs that provide meat for the threaded holes for the sprocket screws. Those lugs change place with every full rotation of the engine. Bottom line: that POS will shake your teeth out. Note that Mike's photo doesn't show that side of the camshaft.
As far as power development goes, I liked it; very steady, good top end. I think you'd be pleased with the real thing from Megacycle.
The 250-00 clone went to the scrap yard (when I buy junk I don't fob it off on the unsuspecting). My old Shell #1 is back in service, and things are much better now.
BTW, my rev limiter is set for 7500.