Not a thing wrong with the rebuild being done right BUT you increased compression with bore and decking, you improved breathing with cc and ports ( IMO Farmall heads all need this; poor flow characteristics). You increased CI about 10%, allowed it to breathe more efficiently and ONLY fattened the carb a little. One of the advantages of adjustable load screw (big hole in jet and tapered needle) was adust on dyno til she smokes a bit then back off. Doesn't need to be dyno that grinder would be fine. Leaded gas was easy cream colored stack and you were ok.
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Today's Featured Article - Identifying Tractor Noises - by Curtis Von Fange. Listening To Your Tractor : Part 3 - In this series we are continuing to learn the fine art of listening to our tractor in hopes of keeping it running longer. One particularly important facet is to hear and identify the particular noises that our
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