We swapped out the Bosch coils and NGK plugs for B58 coils and Brisk plugs. Here are the 3 logs. The first log seemed to slip on the dyno and reported about 620whp, but the last 2 logs both recorded about 650whp. I am curious about why the rail pressure is consistently dropping around 3800-4300rpm? Is that the port injection firing up and taking the flow?