For 2500 to 6500 RPM high-performance engines. Can be used with Ram Air IV heads. For standard 351-W blocks with 9.5 inch deck.

Product Features:

• Features EFI Fuel Injector Bosses on Runners
• For 4500 to 8500 RPM Drag Race Applications
• Has deeper and larger plenum than Victor Jr.
• For standard port location iron and aluminum heads
• Extra material allows port matching
• Great choice for NHRA Super Stock Classes
• Also great for alcohol-fueled applications
• Can Use 1 Or 2 in. Spacers To Tune Performance