Dont forget about the tunning and dyno involved. I think I would rather cough up the $$ for an SC. Read about the intake, and cams. CNC ported heads are reguired to get the most. @ 6800rpm
FORD RACING INTAKE MANIFOLD 4.6L 3V 2005-2010 FORD MUSTANG
Part Number: M9424463V
Ford Racing Intake Manifold for 2005-2010 4.6L 3V Mustangs.
Fits 2005-2010 4.6-Liter 3-Valve Mustang engines.
In testing 320cid engine with M-9926-3V throttle body: +40hp more than OE stock intake at 6800rpm
When compared to OE manifold, M-9424-463V was within 5lbs/ft of torque throughout entire curve
Works well with Ford Racing's hot rod camshafts, high performance CNC ported 3-Valve Cylinder Heads and Ford Racing throttle bodies
Lightweight composite construction (same material as OE intake manifold), 13lb vs. 30 lb aftermarket aluminum intakes
High-flow runners and open plenum design, fits under factory Mustang hood.
Tested to 5 bar pressure - great for use with forced induction!
Includes Intake Manifold Gaskets
FORD RACING CAMSHAFT SET "HOT-ROD" HIGH LIFT GT 2005-2009
Part Number: M65503V
Ford Racing "Hot Rod" High Lift Camshaft Set for 2005-2009 Mustang GTs.
These camshafts are the most powerful cams available that are safe with the production 4.6L 3V valvetrain. Increases lift form the stock 11mm to 12mm. They are also compatible with the production springs, followers and lash adjusters up to 6800rpm. Will produce a 30 HP gain alone and a 50 HP gain if combined with CNC heads.