Ford - 221 255 (4.2L) 260 289 302 Performance level - Supercharger - Designed for B&M/Roots type supercharged street/ strip and marine. Emphasis on upper bottom to top end power. INT/EXH - Dur @ .050” Lift: 228°/228° RR: 1.6/1.6 Gross Lift: .464”/.464” LSA: 114° RPM: 2400 to 6500 Redline: 6500 Learn More
Ford - 221 255 (4.2L) 260 289 302 Performance level - Supercharger - Dual purpose hot street/strip drag cam designed specifically to enhance B&M type blower. Good mid to top end power. INT/EXH - Dur @ .050” Lift: 246°/246° RR: 1.6/1.6 Gross Lift: .507”/.507” LSA: 114° RPM: 2600 to 6500 Redline: 6500 Learn More