EDIT AGAIN: All is fine with this update! For some reason, the ECU learning process took forever.
Whew, this update hurt. Def a step back for me but not sure if John tweaked my map like he has the last two updates. Car was falling on its face when pressing the gas pedal and I ran into some fueling issues near redline. Fuel pressure just dropped away. I did have a little less than half a tank but I just can't see that being an issue.
Btw, running john's 290LPH fuel pump. Maybe the tunnel pump isn't keeping up.
Need to investigate Don@AP's fueling solution.
Edit: looks like less than half a tank may be the issue according to
http://www.ft86club.com/forums/showthread.php?t=36231