Weiand 8122 Street Warrior Square/Spread Bore Satin Intake Manifold Has an all new optimized design for todays higher output big block engines Features a low rise dual plane design delivering friendly power and torque across the usable RPM range Made from permanent mold 319 aluminum construction and is precision CNC machined providing lighter castings with better surface finishes Universal dual pattern carb flange that accepts spread bore and square bore carbs