I have not read the break in bible method but as long as it is a heat cycle method of break in that has you heating the engine up prior to starting the engine and getting the temps up around 200. RB's generally take more than 14 tanks before they are fully broken in. You should be able to put it on the track after 14 tanks you just shouldn't fully lean it out yet, after about a gallon it will fully free up and you can lean it out more at a full race tune. The key is to be patient in that first gallon and don't expect too much out of the motor, when people try to lean the engine out too soon is when premature wear happens.

I am pretty sure I do have a 2045 pipe that would work for ya, it is slightly dented but it still works fine. PM me if you are interested.