Quote from kar-nutIf you have a micrometer or caliper you can measure the cam lobe lift 289Hipo cam both intake/exhaust 0.298"(.298" x 1.6 rocker arm ratio = 0.477" theoretical valve lift)
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A.Lobe lift,= B.Lobe height,- C.Base circle.
B - C = Lobe Lift = 1.720 - 1.421 = 0.299 looks good
Thanks to all for your help.