Depending on what class you intend to run tractor in eng/tractor must be basically stock,in all classes except E(modifed stock)in all classes you can add a max of a 1/2" spacer between carb/block & have a posi/locked axle rear if oem by tractor mfg.In all classes fuel must be pumped gas,no additives or alcohol,the term pumped gas is a broad term,and doesn't define if gas can be hi-test or aviation gas as these are also pumped fuels although either/both may damage eng,this may be a gray area & have to be explored.
In E class-modifed stock you can do internal work to stock block and are probably only limited by the $$ you want to spend for modifications.
If you don't have a copy of rules,do a google search for pulling tractor rules,scroll down to 2013 garden tractor pulling rules & download/save rules.
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Today's Featured Article - Madison's County - by Anthony West. Philip Madison has been a good friend of mine for quite some time. He has patiently suffered my incessant chit chat on the subject of tractors for longer than I care to remember, and on many occasions he has put himself out, dropped what ever it was he was doing, to come and lend a hand cranking handles, or loading a find onto a trailer. Although he himself has never actually owned or restored a tractor, he was always enthusiastic and always around helping with other peoples projects.
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