(Stage 2) XFI" SPR, XE264PH-12;Powerful w/ Very Rough Idle, Good Mid-Range Torque SOHC-(Stage 2) Powerful cam with very rough idle, biggest cam to use with stock heads. Good mid-range torque...
(Stage 2) XFI" SPR, XE264PH-12;Powerful w/ Very Rough Idle, Good Mid-Range Torque
SOHC-(Stage 2) Powerful cam with very rough idle, biggest cam to use with stock heads. Good mid-range torque with incredible top end hp gains. Solid power above 4700 rpm, spring & phaser upgrade required. 3.90+ gears and 3000+ stall.
Specifications
Lifter Type: None (Overhead Cam)
Engine Family: Ford 4.6L & 5.4L SOHC Modular 3-Valve (2004-Present)