Slightly larger than the TA 413. Good bracket cam but still streetable. Strong mid-range, top end power. TA roller rockers and valve springs recommended. 2500 -3000 stall converter recommended. Fair idle. 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: .500”
   EXH: .504”
• TA ROLLERS 1.60 RATIO:
   IN: .516”
   EXH: .520”

DURATION

• AT .050
   IN: 234
   EXH: 248
• ADVERTISED
   IN: 286
   EXH: 308

• LOBE CENTER: 112
• POWER RANGE: 2000-6000