Is that a schematic for a '95? Not what I expected, and very different from my '88. If that schematic is correct for your vehicle, then by all means route power to the battery just like they show.
I'm not "against" MSD except to recognize that their quality/durability/reliability was never what it should have been, and is substantially worse now that the corporation has been sold and re-sold; they're sourcing too much junk from China. Their "core" product--spark boxes--seem to have a higher failure rate now compared to thirty years ago. Thirty years ago, racers had to buy two of 'em, and a special switch-box so that when the first spark-box died, they could flip a switch from the driver's seat to engage the second one.
I had an MSD 6T on my '88 for awhile. Ran good, looked nice on the oscilloscope. One day I'm driving along, and the engine dies. I coast into a parking lot, re-do the wiring to eliminate the MSD and return to plain ol' HEI...started up and drove off. I could have sent the box back to MSD for repair, but I never bothered. I can't tell any difference in the way the '88 runs with or without the MSD.
I'm not "against" MSD except to recognize that their quality/durability/reliability was never what it should have been, and is substantially worse now that the corporation has been sold and re-sold; they're sourcing too much junk from China. Their "core" product--spark boxes--seem to have a higher failure rate now compared to thirty years ago. Thirty years ago, racers had to buy two of 'em, and a special switch-box so that when the first spark-box died, they could flip a switch from the driver's seat to engage the second one.
I had an MSD 6T on my '88 for awhile. Ran good, looked nice on the oscilloscope. One day I'm driving along, and the engine dies. I coast into a parking lot, re-do the wiring to eliminate the MSD and return to plain ol' HEI...started up and drove off. I could have sent the box back to MSD for repair, but I never bothered. I can't tell any difference in the way the '88 runs with or without the MSD.