b18c1 short block b16a head and intake

t3t4 to4e turbo

stock obd2 injectors with aem fuel rail and adjustable reg. and a FMU
ok what is going on is, the min i start to read boost it goes retarded, it cracks up
i put 10 check valves befor the map sensor, do anyone think i should add more maybe? or does anyone think it maybe a diffrent problem?

if i need more info lmk and i will give you the info you need