A Closer Look at Holley’s LS Tunnel Ram Modular Intake Manifold
Tunnel ram manifolds made their debut in the early 1960s. The first ones were actually small block Chevy jobs patterned off a Rochester mechanical fuel injection intake manifold (drag racer Carroll Caudle should be credited for the invention). Soon after, a company owned by Ralph Ridgeway cast a commercial example, followed shortly thereafter by other
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