jamesborn14

wow,cool event!

Most likely a problem with the ignition coils or engine oil. I think it's worth checking everything. Well, it's best to replace, especially since a new set is not expensive. I advise you to buy 6.7 cummins diesel oil here https://davesoilchange.com/best-oil-for-cummins-6-7/ .I have been buying there for many years, a very reliable manufacturer, I think what your retro car needs.