The intake manifold distributes air or air/fuel mixtures to the individual cylinders under varying engine speeds, loads, and environmental conditions. Whether the working flow is pure air, air/fuel, ...

OBJECTIVE: Wet flow, pressure excursions, port volume, runner length, plenum volume—all these figure into an engine's overall efficiency. But there's more… Sometimes theory is neat, but sometimes it ...

It really was disappointing. The small-block Chevrolet rebuild went well and after the engine survived the flat tappet camshaft break-in, performance seemed encouraging. But after a couple of hundred ...