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According to Chevrolet records:
Cam #143 has: *Lift-.497/Intake & .503/Exhaust *Duration-348/Intake & 348/Exhaust...dated 1965 Cam #362 has: *Lift-.520/Intake & .520/Exhaust *Duration-316/Intake & 302/Exhaust...dated 1970 Both of these Cams are Mechanical lifter w/1.70 rocker ratio. |
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