Overheating

[Niley]

I had the car tuned few weeks ago, after a week it suffered from slightly blown headgasket(it was overheating pretty badly 235-240).
After installing new headgasket(+copper spray) and new thermostat, it still overheats a little bit, hoovers around 217-222 when highway driving or pushing it.
Any idea what could be an issue here, or is it normal to be this high?
I don't recall it going above 210ish pre tune, then again I didn't really push it back then. It has seen about two dozen 8.5k rpm runs after tune.
Thanks!

[Taylor008]

Do you have an Air fuel gauge?

Also what motor are we talking about? SR?

[Niley]

Do you have an Air fuel gauge?

Also what motor are we talking about? SR?
AFR is fine, I have AEM serial gauge.
Its SR :)

[s13silvia123]

probable cause is improper bleeding, water pump, or thermostat so i advise to bleed the radiator first then go on from there

[Niley]

probable cause is improper bleeding, water pump, or thermostat so i advise to bleed the radiator first then go on from there
Bleeding was done well, I didn't do it myself I went to friends shop to do it, they create vacuum and then put the coolant in, not sure if there is actual name for it :)
I'm on the third thermostat now, so unless I'm extremely unlucky it should be ok as well.
Water pump is next then! I will also get a bigger fan.
These s30 sr swaps are tough heh

[statickx991]

what head gasket are you useing. and no offense but why copper spray? and also when ur driving and u turn ur head on does the temp drop a lot?