Comp Cams Xtreme Energy 238/240 Supercharger/Nitrous Hydraulic Roller Camshafts for Ford 4.6L/5.4L/5.8L Mod 4V

Xtreme XE-R S-Charged/N2O Hydraulic Roller Finger Follower Cams for Ford 4.6/5.4/5.8 Modular. Max strip/street cams for supercharged or nitrous engines. Large gains in power with larger throttle body, mass air, injectors and exhaust upgrades. 2500+ stall. Requires lower gears and custom tuning. Rough idle. Note: Aftermarket valve springs & tuning required.
Camshaft Specs
Cam Style: Hydraulic roller, OE roller SOHC
Camshaft Use: Street/Strip
Engine Combination: Naturally Aspirated 
Camshaft Duration @ .50 Lift: 238/240
Valve Lift with Factory Rocker Arm Ratio: 0.475 int./0.450 exh.
Lobe Separation (degrees): 116
Intake Centerline: 114 
Valve Springs Required: Yes
Basic Operating RPM Range: 2,000-6,400 *Fits 4V DOHC engines only, requires lower gears, exhaust upgrades, larger fuel injectors, throttle body, MAF sensor, and computer modifications.