I'd say a known good OE Chrysler distributor is hard to beat. I prefer the Mallory stuff from the aftermarket, but not the JUNK that MSD is now palming off as Mallory.
Whatever you buy it's most likely going to need to be recurved. Never underestimate a Ching chow distributor. I know for a fact a member here has one and it's never failed him when others have.
