check my thread out for info
http://rotarycarclub.com/showthread.php?t=3618
basically trailing is stock 1 coil to control it threw the dizzy.
then each leading plug has its own coil. the spark plug wire goes from the coil right to the plug.
on my na 12a 1980 sa, i cant stall the car out now. what i mean is if i drop the clutch in first at a dead stop the car will buck once and pull forward. my car idles slightly under 1000 rpm. you get a much stronger spark on the leading plugs since each has its own coil.they only problem i can see with this setup is cause the leading now is a wasted spark setup. ie both plugs fire at the same time.i dont know enough about 20b's to know if that would cause a problem with the 3 rotor setup. if jeff20b shows up he can explain it alot better.
