ATTENTION: PERFORMANCE AND RACING BUSINESS OWNERS !!!
Ford - 4.6L & 5.4L 4 ValvePerformance level - Stage 4 - Race grind. ECU mods and tuning required. Rough idle is expected.INT/EXH - Dur @ .050” Lift: 220°/228° RR: 1.8/1.8 Gross Lift:.486”/.495” LSA: 114° RPM: Idle to 6500 Redline: 7000