Clear up something in the original trans-am cars?

Chevrolet 302 engine
1968: The Chevrolet 302 cubic inch engine with cross-ram intake manifold and double-pump carburetors took the Chevrolet Camaro to back-to-back SCCA Trans-Am championships in 1968 and 1969. The small engine was capable of producing 458 horsepower at 7200 rpm. (Photo by ISC Images & Archives via Getty Images)
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