Engine Misfire at Altitude.

[Kim Geyer]

we do
I make sure the plug gaps are good and the mags are in good shape and timed correctly.
we use to have some issue with occasional misfire but we started using tempest spark plugs and it not much of an issue anymore
as far as pressurized mags I think ram aircraft can fix you up with what you need. I went through the TCM parts manual and ordered all the hard lines and fittings for pressurized mags but never needed to put them on
Kim