Chevy's small-block Vortec heads can be an engine builder's secret weapon, thanks to the improved flow and potential for ...

When thinking about engine airflow, the common focus has always been the cylinder heads. The experts at Hughes Engines in Washington, IL have been building Mopar engines and developing parts for them ...

Baseline tests on the stock manifold were done with a 650 Holley carburetor mounted on an adapter plate. Here, writer David Vizard sets the idle mixture being delivered by the electronic Holley. For ...

Take your pick. Whether you choose to let nature fill your engine's cylinders with 14.7 psi of absolute pressure or you cram a bit more in the hole with a blower, Weiand has you covered. For about as ...