Finally, gas tank is done! Well, the inside at least haha! It's been a couple days and so far so good! I did figure out the spark issue I mention at the end, turns out I accidentally put on a single pole single throw relay instead of a double throw relay, they looks similar to idiots like me, but that was an easy replacement. This beast fires right up and runs so much better now that it's just gasoline, and not a gas\rust mix sludge in the carbs. Who would have thought?