Okay, the fact you have no factory tach is good. It avoids some issues but I should have asked if you have idiot lights for your alternator indicator or do you actually have a guage. Not that makes any difference how we will wire this, its just that going to a single wire alternator may render your alternator "idiot light" useless.
... your car is fitted with a pin resistor wire that makes it way to the coil. Becuase this resistance wire drops your voltage, the pertronix usesly does not get enough voltage to run properly.
Thanks again. I'll look forward to it! Regarding stock items like idiot lights and original wiring, this car is in no way being attempted to look or be stock. All the original gauges and the thin, flimsy circuit "board" that connected them all have been set aside in a bag. All new 5" AutoMeter gauges have been fitted (took a little doing) in the console. Which is on the bench at this point. I'm assuming I'll be needing to run new wires from all of these to wherever they need to go.
That is, there will be 5-10lbs of old, stock wiring under this dash going nowhere. (Car originally had a/c; long ago removed by a prev ownr. The harness coming out of the firewall is a monstrosity, likely including alot of a/c wires (?)). Just laying on the windshield for months. Not optimistic or planning on really using any of it. (This eng was removed from the bay and worked on (and off) for months. Now it's back in, and completely "unwired" if there's such a term. New electrical major components (and gauges), all unwired; not hooked up. At all. That bit of background may be useful to help understand the "state it's in now) So idiot lights are gone (in a sack, over in the corner). A new Volt meter going in (with help! lol). If resistance wire is a bad thing w/ this modern technology (w/ regards to the Pertronix dizzy and coil), then I won't use any. (Is it that simple?) That is, there are NO wires going to the coil at the moment, "pin resistor" or otherwise. Or anywhere else for that matter. Something I hope to change any day now...
I've read on some audio-oriented sites that zero gauge wire is an "upgrade" where the alt, batt, solenoid and grounds are concerned. I can go that route; no wire purchased yet.
We've a new stereo in, w/ an amp in the trunk. Nothing crazy; 250W as I recall. One of the reasons we replaced the old alt w/ a 100amp one. Again, nothing really huge here.
At some point want to upgrade the headlights...again, new beefier wire I'm sure. Perhaps even a new fuse box. I'm ok w/ new and tossing all the old; just lacking in the knowledge dept. Bottom line
, just want to wire her up correctly, w/ plenty of beefy enuf wires, breakers, etc to be solid. But the old
tech and diagrams from '73 don't exactly match w/ what I've got now w/ modern
tech. So am seeking some experienced, electrical guidance. Some of it very basic, like, "what wire goes where?" "What shud the gauge be?" "Should a breaker, fuse be in between?"... hence my diagram in the original post from what I thought
I've learned over the past couple of weeks. But, it sounds like, am still confused on.
Again, thank you.