Recommended for Race only. Developed in Dave Mongeon’s TA Stage 2 1969 GS. His car ran 10.00 @ 134 MPH the first time out. Needs all the good stuff to get full benefit. Rough idle. 12:1 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: .600”
   EXH: .600”
• TA ROLLERS 1.60 RATIO:
   IN: .620”
   EXH: .620”

DURATION

• AT .050
   IN: 276
   EXH: 276
• ADVERTISED
   IN: 312
   EXH: 312

• LOBE CENTER: 108
• POWER RANGE: 3500-7000