Jack, Your fuel questions always start a great debate. That B was a low compression all fuel tractor so 87 octane is way more than it ever required, most regular fuel of the time was 65-70 octane And lead substitute is only good for the pockets of the company that sells it. Lead was first used as an octane booster, with the added "benefit ??" of cushioning the exhaust valve seat. Lead substitutes do neither of these. In 60 plus years I'm kind of sure that the valves have been retouched and if in the last 20 or so has had hard seats installed.
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Today's Featured Article - Women and Tractors - More Views From the Farmer's Wife - by Teri Burkholder. The top ten reasons why the judges wouldn't let you participate in the stock antique tractor pull: Hey, this is stock! It came with that V8 in it! That "R" on my tires stands for "really old" not radial! Blue gas? We thought it was a pretty color! What wire hooked to my throttle?
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