For years LT1 enthusiasts have been running well into the nines with factory LT1 and LT4 intake manifolds. With some porting the factory castings have proven capable competitors, even on big-cube and ...

EDELBROCK DP4BThough the DP4B gave nostalgia fans something to cheer about when it showed virtually as much output as any modern two-plane on our lower-powered engine last month, when the heat was on ...

Since the aftermarket began churning out parts for our beloved Fox body, horsepower claims have abounded, and their validity often ends in mixed results. Edelbrock has been around for 65 years now and ...

Many people don't want to tear up a brand-new $12,000-plus vehicle by swapping engines. In some areas, increasingly stringent emissions standards preclude most common engine swaps, as well as limit ...