Just finished putting my turbo kit on the car and when ever I try to pass 4k it won't go pass it jumps around like a rev limiter my base map and every spring is set for 7psi I don't understand why it won't go pass anybody have a clue what it could be?

 

your base map has a boost cut which will stop from blowing your car up. so when it reachs a certain boost level it stops everything which is normal with base maps

 

check the wastegate lines, one of mine was disconnected and i was hitting boost cut like ur describing, but in ur case its prob bc the cars not tuned yet