4th gear pull after about a 20minute drive pulling some timing, up to 5 degrees. Cold air, good fuel, medium boost. Check spark plugs are correct gap? stft adding a little bit of fuel - BLOI not holding boost target (gets there initially) but fades as rpm increases and ends up about 3psi low. Boost leak? WGDC plateaus and doesn't change to try and meet target (wouldv'e thought if it wasn't maxed out and other conditions weren't holding it back then it would allow WGDC to increase and build boost to meet target? HPFP rock solid at ~2400psi under laod