SBC Dual-Plane Shootout

This time on Engine Masters presented by Amsoil, we go head-to-head-to-head-to-head to find the best dual-plane for your buck. Using our longtime test mule 372 small-block Chevy, we bolt up the four most popular Air-Gap–style dual-planes to compare power and cost, to help you make the best choice for your engine and budget.