Ford FE 390 428 6-71 8-71 Supercharger Aluminum Intake Manifold [Polished] If your standard Bowtie block

If your standard Bowtie block could handle 1500+ HP it would be Speedmaster's H1 engine block

Off-Road and Drag Racing applications

The Speedmaster high mount serpentine kit for Chevy LS engines

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

where dynamic flow and rock-steady pressure control are desired

Ford FE 390 428 6-71 8-71 Supercharger Aluminum Intake Manifold [Polished] If your standard Bowtie blockIf you are looking for a manifold to use with your 8 71 or 6 71 supercharger, look no further than Speedmaster. These Speedmaster supercharger manifolds are aluminum constructed and suitable for competition or street use.