Pickem-up Won't Start

[JAB'70]

Scratching my head...'70 350/5.7L/4BBL with MSD 6AL ignition box, coil, distributor, wires setup. Now the problem. Just installed a new steering colum and instrument cluster (speedo, fuel, voltage, oil, temp) original chevy with white face kit. Tach is separate, but was on prior to the change. After my upgrades, I started the truck it ran fine as usual. I move it, parking it back in usual driveway spot. Shut it off, then bam - it will not start, almost as if it in not in park. every function works fine (lights, radio, dual fan setup, etc...). When I turn the key, nothing, just the red brake (accessory light) no click, no turnover, no nothing. I also have a powermaster 100 amp alternator (internal voltage regulator). I did put a terminal block in with the above upgrades (jumping a 10 guage wire from the "ignition unfused" terminal on the fuse panel to the block to add accessories requiring an "ignition" only connection (fuse tap for glass fuses are becoming harder to find). My MSD 6AL is connected directly to the battery. I think thats my complete setup...? did I blow my internal voltage regulator in the alternator??? Or for some reason it's not in park. Tried putting it in neutral still the same.???