Last month, you may recall we got a great performance boost for Jack Iafrate’s 351W engine with a set of Air Flow Research (AFR) aluminum cylinder heads. They were good for an impressive 40 hp right ...
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 ...