Recommended for street or strip. Good all-around performance. Easy on valve train. TA roller rockers or adjustable pushrods required. Moderate idle. 2500 stall converter recommended. 9.5:1 or more CR.
Idle Quality:
Smooth Idle - just like stock
Good Idle - mild lump, but doesn’t impair driveability
Moderate Idle - nice performance sound
Fair Idle - heavy lump
Rough Idle - very lumpy race type idle
VALVE LIFT
- STOCK 1.55 RATIO:
IN: .465”
EXH: .494” - TA ROLLERS 1.60 RATIO:
IN: .480”
EXH: .510”
DURATION
- AT .050
IN: 228
EXH: 240 - ADVERTISED
IN: 276
EXH: 286
- LOBE CENTER: 112
- POWER RANGE: 2000-6000
