Installed msd ignition box and dizzy. Now wires under dash try to get hot

I would not worry "for now" about the high charging voltage. Don't get sidetracked. Fix the importand stuff--the ammeter problem (the high voltage may fix itself when you do!!) and next the important stuff that doesn't work, hot wiring, etc.

lol. I’m working on it. I really appreciate the advice guys. Wireing is my worst nightmare