The Lycoming website parts catalog shows the left magneto “Plane” Slick 4370 and the right magneto “Retard” Slick 4347.
What is the difference between the Plane and Retard magnetos?
Does this engine require the champion Slick Start (shower of spark) system?
If yes, which magneto would it connect to, the Plane or the Retard?
When "starting" the engine would both mags be on or just the left?