When HPP left Racekrafters' shop the last time, The Mule performed quite admirably with the out-of-the-box Edelbrock cylinder heads installed. It produced 502.8 hp and 570.7 lb-ft of torque. As always ...

With horsepower seemingly growing on trees these days, picking a set of high-flow cylinder heads for your engine combination is the easy part. A mother load of rotating assemblies and aftermarket ...

Technology has had a positive effect on traditional Pontiac performance. Today's monster mills perform considerably better on the dragstrip than yesterday's race engines, but are often so reliable and ...

It's not taking us long to figure out a 347 is the way to go for easy horsepower with a 5.0 engine. Now that we've had our 347 on the dyno for a couple of tests, we're impressed with how easily it ...