I just purchased a Gen I TVS that is ported and includes a ported elbow. I got new TR6 plugs and 66MM TB that i am throwing in with it. I know that i am going to need a BAP and new injectors as well but am trying to decide on what size i need. Currently i am at 580whp with stg2 cams, LT's, X-pipe, JLT intake, tune, and 3" exhaust all the way back. I was reading that most people run the stock 13/14 injectors but am wondering if that will be enough. Should i go with 60# or jump up to 72's?