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!

Installation Notes: GM HEI will not clear, Use Side-by-Side 2 x 4 Tunnel Ram Carburettor Linkage Kit # 4021. When using Carburettors with vacuum operated secondaries, use Diaphragm Housing Covers # 20-28, for more even and balanced secondary operation.

Features:

• 2 x 4 carburettor top
• Square flange carburettor unting
• 2800-8000 RPM power band
• Special D-shaped port runner design
• Large volume plenum
• Power band: 2800-8000 RPM
• Height: Front 9.06", Rear 9.50"
• Port Size: 1.89" height 1.18" width

Product Reviews for WM1984 - WEIAND