540 Rocker Arm Ratio

							Part#           SUM-1302

                Engine Identification:          1967-up Cheverolet V-8 396 thru 454 cu in

Lift:           Intake   @ cam           3176                    Intake   @ Valve     540          Rocker Arm Ratio
                Exhaust @ cam            3176                    Exhaust @ Valve      540                   1.7

Adv. Duration        Intake              286
                    Exhaust              296

                                    Opens                          Closes                   Max Lift          Duration
Cam Timing           Intake           5         ATDC                 43   ABDC               109     ATDC       228
@ .050              Exhaust          58         BBDC                  0   BTDC               119     BTDC       238