1974 Duster not starting.

Your #8, 7 and 6 fuses are rated at 25 amps, 20 amps, and 5 amps in that order. That is the meaning of the '25A' and '5A' and the '20' in AGC20. 32v means they are 32 volt rated fuses sutiable for a 12v car system.

The power for the ACC fuses comes from the ignition switch when in the RUN or ACC positions on a large black wire. So check for 12 volts out of that wire; this wire splits and feeds the wipers, so if they do not work when the key is in RUN, then there is no power coming out of the ignition switch as it should.

Next check for power INTO the ignition switch on the large red wire. That is the main power feed into the ignition switch. It sounds like you have no power to that. The red wire comes from what is called a 'welded splice' in the dash harness. The headlights also feed from this welded splice so the power must be good up to there. So if you really have no power on that large red wire going to the ignition switch, then it or its connections must be the problem. Trace out that large red wire and look at it carefully for signs of getting hot.