Single Status Update
What electronic ignition kits are available for j13?
You should post in the 520 or 521 forum so you get more exposure to your questions... https://ratsun.net/forum/10-trucks/
There was no electronic ignitions (EI) on the J13 just points. The J series was used in other countries like Mexico and Central America maybe South America possibly in the late 70s. Have a look at the https://pertronix.com/electronic-ignition-conversions?year=1969&make=Nissan / DATSUN&model=521 Truck&cylinder=4#auto
You only need something cheap that gets rid of the points, no need to spend a lot of money on a new coil when the old one id fine.
This thread applies to the J13/15 series engines as well as the E1 series engines.
Mg Midget distributors are cheap, they have aftermarket support, and they will fit the J13/15 also.