anyone know of an alternative to MSD cap

MOPAROFFICIAL said

Well ..you can draw a mark inline with every terminal on the distributor housing...then fiddle the rotor, but the cap is much easier to move.

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kinda what I did, though you only need #1 cylinder.Set engine to tdc firing..Rotate base with phased rotor at zero ,line up the rotor tip with the the mark on the housing.lock the housing and phase the rotor.