Comments/Recommendations
A maximum performance, but very streetable package for the Ford 5.0L H.O. EFI V-8. This one will really let your Mustang kick up its heels! Additional parts recommendations: Holley 70mm Ford throttle body, P/N 112-500; 24 or 30 lb./hr. Holley fuel injectors; Holley 70mm EGR spacer, P/N 112-550; 70mm mass air flow meter; Holley 190 liters per hour in-tank electric fuel pump, P/N 12-901; Holley adjustable fuel pressure regulator, P/N 512-500-1; Lunati 1.6:1 roller rockers, P/N 84160.Add a set of 1-5/8" tube headers (Hooker P/N 6128 or FlowTech P/N 12110), "cat-back" system (Hooker P/N 16862 or FlowTech P/N 42604) and Hooker Aero Chamber mufflers, P/N 21502. Note: FlowTech's cat-back system contains mufflers but requires an H-pipe, P/N 53605.

Vital Statistics
1986-93 Ford Mustang, 5.0L H.O. EFI engine
Horsepower: 350 @ 5750 RPM
Torque: 350 ft./lbs. @ 4000 RPM

Kit Contents
Lunati roller camshaft, P/N 51027LUN
Holley upper and lower shiny intake manifold, P/N 300-72S
(Upper intake manifold only) P/N 300-74S
(Lower intake manifold only) P/N 300-75S
Holley double roller timing chain and gears
Fully assembled Holley 17° valve aluminum cylinder heads, P/N 300-575
Hardened push rods, P/N 301-32
ARP® cylinder head bolts, P/N 301-31

Camshaft Specifications
Advertised Duration (degrees) 276 (Intake)280 (Exhaust)
Duration @ 0.050" (degrees) 221 (Intake)223 (Exhaust)
Valve Lift (inches) 0.509 (Intake)0.509 (Exhaust)
Lobe Separation Angle (degrees) 112 (Exhaust)
Opens (degrees) 3.5 BTDC (Intake) 48.5 BBDC (Exhaust)
Closes (degrees) 37.5 ABDC (Intake) -5.5 ATDC (Exhaust)

SysteMAX II Recommendations
A 3.73 axle ratio, for either automatic or manual transmission vehicles, will allow you to take better advantage of the engine's higher RPM torque and horsepower. Spark plug recommended is Autolite P/N 3924.

NOTE ON TRANSMISSIONS: Due to the increased torque and horsepower produced by SysteMAX II a heavy duty manual transmission (Ford SVO) must be used. Also, the automatic transmission deserves some attention. One of the Holley engineering test Mustangs used a stock Ford AOD transmission that was modified with a B & M 2500 RPM stall speed torque converter and shift kit. The combination provided very good performance results.