Wilson Intermediate Ported Holley 300-277 8.2 Deck SBF 289-347 switch and eliminates trapped air in

and eliminates trapped air in the cooling system

The GTR intake has adjusted runner length & plenum volume plus completely ported and polished upper & lower manifold sections

The Fan Spray Pattern created by progressively angled orifices evenly covers the full 360 degrees of the intake plenum to insure equal distribution and to eliminate corner cylinder lean out

Greater strength

choose the option on the side

Wilson Intermediate Ported Holley 300-277 8.2 Deck SBF 289-347 switch and eliminates trapped air inHolley 300 277 intake manifold for small block ford 289 347ci optimized with wilson manifolds intermediate porting service. Intermediate porting service includes: porting the plenum of the intake manifold all the way through the runners. We will adjust the divider walls, taper, angles, textures, etc to substantially enhance distribution and pick up horsepower. The service also includes a gasket match to customers specification. This is not a shelf