Rotec belt-driven alternator conversion, which I further upgraded to a B&C alternator, so I that I could use the B&C voltage regulator mounted inside the plane.Camit’s “drop-in” solid lifter and hollow push rod conversion, along with Camit designed rocker arms and bushings.LCH’s (seats and guides on these Rotec heads are high quality and as far as I know Rotec can provide service if needed in exchange for $$$).Our 3300A SN’s are not too far apart (mine is SN 1891), but I did not leave well enough alone.
