[Young1]

I have a Mallory distributor manual advance only on my FE. Model #2555301, female cap. The spring on the carbon inside the cap has become weak not making good contact on the rotor resulting in hard starting. I want to replace the cap. Do I need to source one from Mallory or is their a substitute I can get at local auto parts store? How about the rotor as well? Might as well replace the pair. 10 K miles on engine. Thanks.