Comp Cams Part Number 12-422-8
Engine 1955-present Chevrolet
262ci-400ci
8cyl.
Grind Number CS XR270HR-10
Description  
  Intake Exhaust
Valve Adjustment 0 0
Gross Valve Lift 0.495 0.502
Duration At 0.006 Tappet Lift 270 276
Valve Timing At 0.006    
  Open Close
Intake 29 61
Exhaust 72 24
These Specs Are For The Cam Installed At 106 Intake CL
  Intake Exhaust
Duration At 0.05 218 224
Lobe Lift 0.33 0.335
Lobe Separation 110