Installing MSD6AL

Let me find that for you.
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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.
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The kits in the 80s and 90s came with some hardware to make it easy to convert back to factory ignition with two jumpers.
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The point is to leave the original wiring at the resistors alone. Make the connections using the wires that originally went to the coil.
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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.
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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.
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