It's a no-brainer that if you start with a wimpy two-barrel carb and intake, an enginehas nowhere to go but up, but is the aftermarket carb and manifold really worth it if your engine is already ...

We recently spent a couple of days dyno-testing several different rocker-arm ratios on our 470-inch Mopar big-block. The good news was the engine made 700 hp on pump gas, but we were disappointed when ...