4P CNC Porting for Skunk2 Ultra Manifold Gasket yet enough balls up top

yet enough balls up top to pull hard to our USAC mandated 9400 rpm limit

traction control and other stock systems

4 Piston Extreme Race Chain Guides are one of the biggest breakthroughs EVER for K-Series engines

K24 timing chain guide

650" lift and 15hp over the competition's best

4P CNC Porting for Skunk2 Ultra Manifold Gasket yet enough balls up topIf you have already purchased a Skunk2 Ultra Race or Ultra Street manifold, you can send it to the address below to be CNC Ported. 4 Piston Racing CNC Ported runners flow 50 70 CFM more air than an off the shelf manifold depending on the port profile. These ports are designed to be port matched to our race winning CNC ported cylinder heads. Please included your contact info and what engine you have in the box with the runners. Ship the manifold