Engine Pro MC2292 Flat Tappet Camshaft!
This is for FORD SBF 221, 255, 260, 289, 302 C.I. (EXCEPT 1982-85 302 H.O. & 302 C.I. W/HYD ROLLER LIFTERS) FIRING ORDER 1-5-4-2-6-3-7-8.

Camshaft Specifications:

• Stage: 4
• Duration @ .050": Intake: 231 Exhaust: 231 
• Advertised Duration: Intake:288 Exhaust: 288 
• Valve Lift: Intake: .512 Exhaust: .512 
• Lobe Separation: Intake: 106 Exhaust: 114 
• Power Range:     2500-5800
• Idle: Rough
• Lifter Part #: 900 
• Comment: STREET AND MILD BRACKET

General Stage 4 Camshaft Specifications:  

• Idle Quality:   Rough. Manifold Vacuum Will Not Operate Power Brakes
• Torque:      Mid-Range 3000-4000 RPM
• Fuel Economy:      Poor 

Recommendations:

• Towing:Not Recommended
• Racing: Bracket Drag Racing, Limited Oval Track
• Computer Controlled Vehicles: Not Recommended
• Transmission: Automatic With High Stall Converter or Manual
• Compression Ratio: 10.5:1 To 11.0:1. Check Valve to Piston Clearance