Scirocco Register

It's a heat related problem I've decided now when the car is up to full running temperature the problem occurs let her cool down a bit fine again and anything under that temperature she is fine
Still can't find the problem

Lets start at the basics..
When was the Spark plugs, HT leads, Dissy cap, rotor arm, air filter, oil filter last changed?
Did you use good quality items if you have recently changed them?

Spark plugs ht leads dizzy cap rotar arm I was told have been done recently. I serviced all other parts but thinking have they lied

I think I've just got it in my head to much that it's fuel related when. But still don't trust that carb but don't want to go webber tbh

It's hard to tell age of parts as previous owner as regular oiled the engine bay so everything just looks black