Hi guys I'm getting soo pissed off with my scooby..

Had a fresh build which I brought from a engineer.. I know his work is good as he builds stock car and touring car engines..

I have had constant running problems

From cold the car

Shakes
Misfires cylinder number 1 turbo side at the front
Smokes white and blue

Soo today I have changed the injector still
No difference

It's had new coilpacks
Throttle body
Injector

Got half sharp compression
155 highest
140 lowest across all cylinders

I'm soo stuck I dunno if you guys could give me a path to go down any help would be much appreciated..

More than happy for someone to come look if they live local to NN9