Exhaust ports

[Bananaman99]

Hi
Just removed the manifolds on my 500 due to gasket leaks
I seam to have an issue as no 2/4/3 ports are sooty whereas the rest look to be clean...look to be painted white?
The engine has been running ok using no water or oil and plenty of power
Didnt expect an issue just changing gaskets
Any ideas anyone
Thanks

[phillpot]

Get the injectors serviced

[Bananaman99]

Where would you suggest to get them serviced?
Thanks

[phillpot]

Injectortune