I will contribute to the input with the dynamics of the intake/exhaust and cam design. The carburation flow volume at ~1800rpm is about all that the carb can handle and deliver fuel correctly. (with the engine producing its highest level of output, throttle wide open. It will make more torque and fill its cylinders fully at the 1650 point, due to cam timing, valve lift and intake runner size. The reality is that if the cam, and carburation, intake (from a 350 lets say) were used it could operate at a higher RPM making more power. Adding RPM only will make a faster tractor on the road, and in any gear while not pulling, but that only feels more powerful, and achieves little. Jim
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Today's Featured Article - The Cletrac General GG and the BF Avery A - A Bit of History - by Mike Ballash. This article is a summary of what I have gathered up from various sources on the Gletrac General GG and the B. F. Avery model A tractors. I am quite sure that most of it is accurate. The General GG was made by the Cleveland Tractor Company (Cletrac) of Cleveland, Ohio. Originally the company was called the Cleveland Motor Plow Company which began in 1912, then the Cleveland Tractor Company (1917) and finally Cletrac.
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