https://www.jcna.com/tuning-lucas-distributor-0
A couple of interesting articles which cover the same distributors as in the MGB
a collection of classic car tech tips, tricks, ideas and information all about performance, modifications, maintaining the MG MGB and GT from across the Internet. Also tuning, servicing, repairs and mods on my own classic car a 1975 MGB Roadster
https://www.jcna.com/tuning-lucas-distributor-0
A couple of interesting articles which cover the same distributors as in the MGB