SR20DET Blacktop w/ Garrett GT2871r .64 turbo dyno charts

[supra33202]

Single 17.2PSI boost run:









Multiple runs:







My 1991 Nissan 240sx S13 with SR20DET got dyno and here is the mod list.

Engine:
1996 SR20DET Blacktop w/ Garrett GT2871r .64
Apexi 1.2mm head gasket
Arp studs
Tomei 256 cams
Brian crawler springs, retainers
Cp pistons, rods

Fuel:
Nissan oem 740cc injectors
Walbro 255 fuel pump
Sard fuel regulator w/ gauge
Splitfire Direct Ignition Coils

Breathing:
Z32 n62 MAF
Apexi power intake filter
Greddy intake piping
Greddy VSPL intercooler
HKS SSQV Bov
Greddy intake manifold
Fullrace exhaust manifold (bottom mount)
Garrett dump pipe
Megan test pipe
RSR Ex-mag

Drivetrain:
DSS aluminum driveshaft
Toda lightweight flywheel
Exedy 3 puck clutch

Electronics:
Blitz SBC id boost controller
Apexi PowerFC with commander

Questions:

1) Are my dyno curves look good?
2) If I set the boost controller 0 boost, it means stock boost right? Then, I should have 6-7 psi for stock internal wastgate for Garrett GT2871r turbo. Then why the chart show 0 psi (3rd pic of the "Multiple runs")?
3) How do I correct the 10 psi boost creep shown on the 3rd pic of the "Multiple runs"? Should I set the gain on the boost controller differently?

Thanks!