RickB,
I was probably building electronic circuit before you were even born. .
JJ.. rickb is likey very close to your age...
what we are telling you is what we have seen and dealt with day in and day out on other ford boards.
ei and 6v causes significant disapointment issues with owners. 12v and ei.. not so much.
the front mount dizzy just complicates the issue further since, if you keep the squre coil , you are limited to a 6v coil needing a resistor to run on 6v.. or a 12v coil needing a resistor to run on 12v... a ver un-ideal setup IMHO...
I've no doubt 6v and ei on a rebuilt front mount ford 8n with rebuilt engine back to factory specs, plus a rebuilt dizzy with new bushings, clean fuel tank and clean carb, rebuilt starter with good brushes and bushings, fresh fuel, all new wires and a brand new hot battery and new plugs will work out just fine... sadly.. that's a pipe dream for most applications I see. Many people are looking for bandaid fixes.. big one is going ei instead or replacing dizzy bushings, as the EI HE sensor is more tolerant of a eccentric spin that would make for changing points gaps.. that and 12v seems to be a universal bandaid for a wornengine with low compression. 12v on the 6v starter spins it over faster yeilding higher dynamic compression and easier starting... cheaper to hang a 35$ junkyard alternator on than re-ring and re-sleave and engine and drop in bearings, and gaskets, oil, and have head and block checked, plus a valve job.
again.. this is the stuff we see and deal with daily onother ford specific forums... just didn't want the op to drop 150$ and have a non running tractor thinking EI was going to be a cure all / replacemnt for repair and periodic maintenance.
soundguy