Ford - 351C, 351M & 400 Performance level 5 - Compu-Pro - Upper mid-range and top end power for extra pop above 7000 rpm. INT/EXH - Dur @ .050” Lift: 274°/282° RR: 1.73/1.73 Gross Lift: .618”/.638” LSA: 107° RPM: 4500 to 7500 Redline: 8000 Learn More
Ford - 351C, 351M & 400 Performance level 4 - Pro-Street - High revving with superior mid-range and top end power. INT/EXH - Dur @ .050” Lift: 246°/250° RR: 1.73/1.73 Gross Lift: .541”/.548” LSA: 112° RPM: 2500 to 6000 Redline: 6250 Learn More