The Indianapolis 500 is this weekend and the cars running will have engines revving up to 12,000 RPM. Here’s a 1949 John Deere “A” running at 144 RPM.
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The Indianapolis 500 is this weekend and the cars running will have engines revving up to 12,000 RPM. Here’s a 1949 John Deere “A” running at 144 RPM.