HI–RAM SERIES: These tunnel ram Manifolds
are used primarily in drag racing, tractor/truck pulls and performance
marine applications where high RPM performance is required. The effective RPM range is between
2,800 to 8,000 RPM. The Weiand
Hi–Ram, with it's patented D–shaped port runners and large plenum chamber, provides optimum velocity of the air/fuel mixture to the cylinder head intake ports. For maximum performance in a naturally aspirated competition application, the Weiand
Hi–Ram is the Manifold
of choice! This Manifold
is designed to be used with performance oval port heads.