Oldsmobile 400 425 455 LowRise Aluminum Intake Manifold [Polished] They have injector bosses precisely

They have injector bosses precisely positioned and machined for excellent fuel spray patterns and maximum power

If you are looking for a manifold to use with your 8-71 or 6-71 supercharger

Couple this Hi-Ram intake with the high flowing Ford Coyote style cylinder heads has outstanding potential for naturally aspirated and forced induction applications

to feed its sump tankâÃîdelivering enough fuel to power up to 800 HP engines

Kits include: Fully assembled aluminum cylinder heads

Oldsmobile 400 425 455 LowRise Aluminum Intake Manifold [Polished] They have injector bosses preciselyThe Speedmaster LowRise Manifolds are our lowest profile manifold and is also the only one that is street legal on pollution controlled vehicles. It is set up to accept a spread bore carb.