So I HAD to drill out the brass that was stuck in there. I tried everything. Anyways, I drilled it to 1/16 (smallest bit I had). I screwed the new screw all the way down (which doesn't quite hit since the hole is bigger ) and the thing runs better than ever. No backfires what so ever, will hold about any idle you want and sounds good. Right now it's bottomed out on the spring. I'm thinking if I just cut the spring I could get it to go a little lower maybe it will run even better but it's really pretty good now. I guess since it's a tappered screw I should still be able to get it to just about as good as before? Maybe just harder to adjust? I had the messed up carb's screw out like two turns and noticed it wasn't quite firing as perfect as the other side. I slowly turned it in and heard it sound better and better, firing every stroke as it should but as I said right now I can't turn it in more because of the spring, its not that the screw itself is bottoming out. It's not like this is going to be a high performance drag bike or anything anyways so I guess good enough is good enough?