I ended up deciding to go with a 2 stroke intake and “racing” carb. Stock 212 carb bore is a little over 18mm, so a 19mm carb should do ok, might need reheated, not sure on that yet, but I am going to just extend the mounting holes on the 2 stroke intake. Bought the boot style carb and it sticks out way too far and my leg is going to hit it. I also don’t want to build a bracket to support it or mess with trying to reposition it. The “racing” carb should work fine, even if it needs tuned a little. I hate spending money on parts I’m not going to use, but this is a bit of trial and error for me as I’ve never built a 212 before. I now have two carbs I’m not going to be using, but it is what it is.