Split pattern cam with considerable emphasis on the exhaust side. TA roller rockers and valve springs required. Rough idle. 11:1 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: .543”
EXH: .566” - TA ROLLERS 1.60 RATIO:
IN: .560”
EXH: .584”
DURATION
- AT .050
IN: 245
EXH: 262 - ADVERTISED
IN: 284
EXH: 294
- LOBE CENTER: 108
- POWER RANGE: 3500-6500
