Mid to upper range cam for bolt-on blowers with high boost. Noticeable idle, solid power gains above 4900 RPM, requires spring upgrade. Best with 3000+ stall. Requires custom tuning.
XFI Valve Springs Required Blower 222/239 Hydraulic Roller Finger Follower Cams for Ford 4.6/5.4L Modular 3V. Mid to upper range Cam for bolt-on blowers with high boost. Noticeable idle, Solid power gains above 4900 RPM, requires spring upgrade. Best with 3000+ Stall.
