The LS combos have the potential to make ground-pounding power, even in almost-stock trim. As usual, our bellies weren't yet full, though, and our minds were on the buzz for something more. We just ...

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 ...

Picking the right valvetrain for your engine can be a daunting task. Solid flat tappet, hydraulic flat tappet, solid roller, hydraulic roller; these are the choices, made even more difficult due to ...