Electrical help

Hi Guys, new to the forum and I'm hoping you can help. I have a bone stock 74 Duster 360. Recently I replaced the ignition with a repop and everything was fine. A friend added a tach and screwed up something in the wiring. I have removed all the tach wiring but something remains weird. I have no power to anything running off the acc circuit. so no radio, blower, signals etc. Also another odd thing is my dash lights are gone. I've pulled the fuse box and tested for power and with the ignition on there is no power to the last fuses, blower and acc. Any advice you have would be appreciated.
When you say you "replaced the ignition with a repop", what exactly did you replace? Ignition switch, or distributor, or ignition module, or wiring, coil, or a whole aftermarket ignition system (MSD, HEI, etc.)?