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 ...

Regular readers know we often run several Xtreme Energy hydraulic-roller camshafts from Comp Cams on our 347 dyno mule. Besides running well, those cams are good choices for a test engine because many ...

If you were less concerned about maximum power and more about having 450 hp with a dead-smooth idle and optimized drivability, the factory Gen 3 LQ4 camwould be the obvious choice. This was the ...