Rocker Arm help

lot of variables at play, Harland Sharp has a rocker arm specifically for the Edelbrock heads (which the speedmasters should be a copy of). the Mancini rocker fulcrum length falls between the short HS rocker for the Edelbrock heads and a factory rocker arm. So yeah, the mancini rocker arms are a little long. If I remember correctly the PRW rocker arms are almost the exact same fulcrum length as the short HS rocker arms...