I have refurbished Mopar only distributors returned to the factory curve taken apart, cleaned/lubed and ran on a Sun distributor machine and documented. Have hundreds ofr cores so just ask if you dont see the one you need. I have to ask for a core on the dual points getting seriously expensive...
1970 383-4 hp distributor 3438233 hard to find like new Right NOS vac advance that works For B. C and E bodies HP. Fully gone through new Mopar points/cond tested and documented on a sun 504 tester. . Asking $550 shipped lower 48.
All the distributors were taken apart cleaned and all tolerances checked. Then ran on a Sun 504 Distributor machine and results documented. These are all the stock specifications if not noted otherwise. Been doing these for a long time since the late 70's. Any questions just ask...