[# WND-1988 ]
HIûRAM 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 2,500 to 8,000 RPM. The Weiand HiûRam, with it''s patented Dûshaped port runners and large plenum chamber, provides optimum velocity of the ai