You do not NEED a BAP for e85 and a 150 shot...I have datalog to prove it. I strongly suggest not to use a BAP unless absolutely needed(like running out pf fuel). On my Paxton setup, yes I needed a BAP, but when I went back to nitrous, I kept the BAP and ended up burning up my pump and leaving broke down on the side of the road. After putting in a new pump(thanks BBR for the hookup!) I opted not to run the BAP. I made several datalogs and dyno runs, which showed I have more than enought fuel to take the 150 hit. Also, one thing to note I am pulling fuel(e85) off the rail and have not seen any lean spikes. I have gone thru 3 bottles with the BBR NX150 setup and no issues or lean spikes.