Difference between Slick 4345 and 4372?

[RV8Squaz]

Hello. Does anyone know what is the difference between a Slick 4345 and a 4372? Both are impulse coupled magnetos intended for the left side.

Thanks you!
Jerry Esquenazi
RV-8 N84JE

[jabarr]

I sent jerry the answer but I'll answer here as well in case others have the same question. The 4345 is a retard breaker mag that requires a slickstart box or equivalent. The 4372 is an impulse mag with a 15 degree lag angle.

[RV8Squaz]

Thank you Jon!!! You the MAN!!!

Jerry