Under normal atmospheric conditions (example not high altitude like Colorado) the 7 port would be too much in buggy. Sorry no runtimes as I haven't ran the 7 port.

I break in engines with a high quality 30% fuel. For those over sees it would be 25% fuel. Any manual will tell you to break in with fuel of 16% oil and low nitro percentage. This is the old way of engine break in. Read the sticky at the top of the page and enjoy your engine.