Ok, I'm officially flummoxed over this Petronix install on my 1971 280SE M130.

As Curly from the 3 Stooges used to say:" I'm trying to think but nothing happens"

I have the Flamethrower Coil AND the Ignitor kit. Kit is installed in the distributor, gapped 030 and ready to button up, rotor, cap, done.

My understanding is I need to bypass all the MB switchgear and ballast resistors with the new coil, which has internal resistance I guess. All the old wiring can then be left intact for another day.

Black wire from the Ignitor is on the (-) terminal on the new coil. Where does the red go (+?) and where to I pick up the ignition wire from the key to send low voltage to the coil via the battery? Does something come off the terminal block down by the switchgear boxes next to the radiator, driver’s side or from the last ballast resistor before the old coil? Do I need to run a jumper down there? Also I assume I no longer need the chassis ground that was on the - side of the Bosch coil.

Please help relieve me of this severe brain cramp.

S

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Present
1971 280SE W108

1967 250SE W111
Rhode Island
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Auf Wiedersehen
1972 280SE 4.5 (AKA Das Moneypitten)
1972 250C (Mit den zwei carburetors from hell)

"Time fly’s like an arrow, fruit flies like a banana" Groucho Marx