My ignition was pretty janky when I got it as well, had an aftermarket canister-style coil just zip-tied to the stock solid-state coil, wound up replacing all of that with a stock-style solid-state Herko B108 coil off eBay for like $20. I wound up reassembling the brackets on that coil to put the resistor on the other side for better wire routing/management. As for the coil wiring, this post covers that pretty well.