Can your pushrods or valve springs affect your power production, even when valve float isn't a problem? This promises to be an eye-opening episode of Engine Masters, as we test varying combinations of valve spring and pushrod strengths in our 514 big-block Ford.

We've done an intake manifold comparison on nearly every American big and small block platform, and at long last it's big block Ford's turn. We're shooting out single planes AND dual planes on a healthy street/strip 514ci combo that should relate to what a lot of BBF guys are running.