Hei conversion

Hello all, new to Mopars but not new to cars. I've always had Chevrolets but bought this 1975 dart as a project. I got a DUI hei distributor and gm one wire alternator. And a petronix hei power relay kit. I thought it would be easy to convert over but I'm having a hard time locating any hot wires. Is the Mopar ECU box needed(orange box?) I don't have one there at all, just the bulkhead connector. Ballast resistor is also there but no hot wires on either side. I was hoping I could find a schematic for wiring to convert. I've found a lot of diagrams op resistor by pass or just adding in an hei module on a Mopar distributor, but none with pinputs for bypassing the box. Thanks for any help

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