In this guide we are going to cover the popular single-seater series of Formula B, Formula Atlantic and Formula Two. From 1964 to 1978, these racing categories and the flat-bottomed Formula cars manufactured to compete in them served as a stepping-stone to the upper echelons of open-wheeled racing, be it SCCA, USAC or Formula One.
Formula B was primarily a US series governed by the SCCA during the 1960s. These cars had tubular chassis, and were powered by the production-based four-cylinder carbureted 1600-cc Lotus twincam engine, which originally only produced 140 bhp. With development, these engines now produce 195 bhp.
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