Is200 missfire

[Sizer1]

Anyone got any idea please help😵‍💫
Turboed with DET3
Car started with a missfire under boost but now missfire/ splutter when put foot down and all way up rpm. 
First code i got was to do with vvt, so changed the solenoid and that went but missfire didnt, then got a missfire cylinder 1. 
Now i have a multiple missfire, then cylinder 2,4,6.
Iv changed coilpack, sparkplugs, some injectors (second hand), Vvt solenoid, checked the filter thats fine, camshaft sensor new and just done a compression test, thats all good. Anyone got any ideas😵‍💫
 Checked for vac leaks, boost leaks. Checked wires and all seem in good condition 

iv been for a drive and if you go steady up the rpm to 8k etc seems to be okay, but if plant your foot it is when it doesnt like it

[ColinBarber]

Multiple cylinder misfires is typically (but not always) caused by a fuelling issue, especially if it occurs when you put your foot down and therefore demand more fuel. Check fuel pressure and get the injectors tested (don't just randomly replace items) for leaks and spray pattern.

[Sizer1]

Hi, had it to a tuner today, looked at all that side and fuelling was all good, no issues there. Couldn’t find much wrong that side. He recommended some different sparkplugs as thinks it like a plug misfire. Got some new plugs and no different still😵‍💫