Aluminum intake manifold for SBC gen one 265-400 cid single plane design 3500-8000 rpms 4150 flange. Edelbrock P/N 2925 Super Victor 23-degree intake manifold is designed for heads with a standard port location, the runners match the “flat floor” entry of the latest 23-degree heads. Carb pad height is 5-1/2″ (from end seals) and overall, this intake is about one-inch taller than our Victor Jr. intake #2975. Runners have a 2.80 square-inch cross-section. Special order 3-5 business days. Please e-mail with questions.