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I have been doing some more thinking on this engine "to be". Since all of my previous engines have been overhead valve types, or with valves mounted outside the cylinder ala Webster, I think I will try a side valve engine. This has the valves arranged similar to the old flathead Ford engines, with a plain flat cylinder head which has only a sparkplug hole in it, and the valves set off to one side of the cylinder with the stems pointed down toward the crankshaft (or camshaft). A good example of a side valve engine is the Philip Duclos gearless engine. I also have been thinking about ignition points. On all of my other engines they are exposed and stick out like a sore thumb. I am wondering if they couldn't be hidden in a cavity cut into one side of the flywheel similar to the old early Briggs and Stratton engines.