Please help! Petrol in oil
 

Hi! First time posting so hopefully I do this right(go easy on me)

So I have a 2011 wrx hatch visible issues are petrol in oil and quiet a lot. Noticed after the car on cold start blew smoke on start up and heavy acceleration.

Before that I did a service oil change 4.5l of 10 60 as I always do.

More issues are after my tune and bolt on upgrades that after fulling up petrol or having the car off for 5 mins and turning it back on it idles rough doesn't happen often but has a few times maybe once a week. Also to add on acceleration I have found a flat spot occasionally maybe when the weather is cold.


Mods are 1000cc injectors
Dw300c fuel pump
Xforce tbe
Pw tmic
Pw cai
Tgv delete
Blouch 1.5xtr 7cm
3 Port boost solinode
Forged pistons
170xxxkms

Making 223kw 299hp on 98

Injectors have been tested and cleaned and came back good.

Hopefully you guys can help me out.

Could be to do with the tune itself?
too much fuel, washing bores allowing fuel past the rings.

Is it burning oil ?