One other thing here on your carb does it have the factory electric solenoid or did someone remove it and put a stupid adjusting screw in it ?? If it has the adjusting screw then back it off five turns and leave it there if it has the solenoid then it shold be opening all the way off the seatwhen it is powered . As far a sweeting up the gas by adding that ain't ah going to happen so that leaves draining it ALL out and filling with the best ya can find and today the best ya can find maynot be good enough . Get a timing light on it and check the timing and like i said make sure it is to the BOOK wright . Eash I H modle has it's own setting and off the top of my head i can not remember what the 656 sets at . &06 with a C263 sets a 23 degree a 706 with a C291 sets at 18 degrees a 806 with a C301 sets at 23 degrees so one set does not cover all and doing by ear your going to be so far off you will not believe . THIS MUST BE DONE AT WIDE OPEN throttle at max RPM. And like i said you will never hear it start to PING OR KNOCK till it is to late.
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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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