Hey i just turboed my 94 integra w/a jdm B20B. Turbo pulls hard thru 1st and second but when i hit 3rd, around 4000 rpm the motor feels like its redlining and rpms are bouncing of 4k. here is my setup...

T3 turbo XSpower
rams head Manifold XSpower
Tial wastegate
XSpower BOV (not installed yet)
XSpower intercooler
Walbro 255 pump
RC 440cc injectors
AEM Fuel pres. Regulator
FMU 12:1
Check valves in place of missing link
Greddy Turbo Timer

any ideas on whats going on with this?? the o2 sensor is not installed yet. any info w/this is helpfull.. let me know