This A-model already has the President II conversion with the IO-550 engines, but we're thinking better economy and starting are in order.

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In this case, and being it is a twin, this customers desire is fulfilled with 2 boxes from ElectroAir; an electronic ignition system for certified aircraft.  Finding location to mount controllers, coils, and MAP sensors, twice for a twin, we found to be twice as nice!

Controllers and MAP sensors went under the avionics shelf in the front baggage compartment.  That made for relatively easy access to the MAP gauges for a plumbing tap.

   

The front of the firewalls were already well spoken for, not much extra room in a Baron.  But the back of the firewalls were available!  A judiciously placed inspection panel helped with that installation.

 

We made 'dog-houses' to penetrate the firewalls for the ignition harness from stainless-steel sheet, sealed with flame retardant sealer.

 

A couple switches and circuit breakers were added to the instrument panel.

 

And a whole lot of wiring installed and secured...