Tach terminal runs into the cab. should be OK, I didn't mess with it. (not because I didn't try but because the connectors only hook up one way!

I thought maybe it went to the ignition but I was just being a tad more stupid than usual.
I'll try hooking up the batt wire from the dist directly to the battery cable & see what happens.
You are saying that I can go directly from the distributor to the hot terminal on the battery, correct?