Installing MSD6AL
Let me find that for you.
The green and violet wires were spliced on, and that works, although I prefer splicing the proper connector onto the MSD twisted pair of violet and green wires.
The kits in the 80s and 90s came with some hardware to make it easy to convert back to factory ignition with two jumpers.
The point is to leave the original wiring at the resistors alone. Make the connections using the wires that originally went to the coil.
You can make yourself a terminal strip like MSD used to supply.
Here's my version on a E-core coil. Coil type irrelevant for the wiring. The coil positive wire was blue in '67. For your '74 its brown.
or you can do somehting like this. Just be sure to have all conducting surfaces insulated so they don't short if the wire touches ground.