If it's popping then it's too lean, jet up. your oil issue is called blow by. I had the same problem until I bought a vacuume pump.$$$$$$$$$$. Blow by is normal on a high rpm motor. there are many ways to deal with it. although the vaccume pump is the best route it is the most expensive. 1000-1500$ but you will pick up 10 to 30 hp. Another route is to dump it into your exhaust from your valve covers , more common. basicaly you run 3/4 or 1 inch hoses from your breathers holes to a threaded pipe welded into your exhaust. has to be a y angle or wont work. third you can buy a puke tank, mount it and run a hose from each valve cover to the can with a breather or 2. most common on this forum.