An engine's valvesprings play a critical role in its performance, yet those incorrectly chosen for a given application can cause hobbyists to unknowingly point blame in another direction if an engine ...

In today's world of touch-screens and digital technology, it's no surprise companies are constantly finding new ways to get the most performance from their products. It used to be a challenge to make ...

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. Going ...