Car appreciation... the aesthetics, the engineering, etc

still doing the revs thing and I've noticed an intermittent clicking noise coming from dash area, sounds very much like a switch noise.....quite random, but seems to click when giving it a bit of revs, but not every time........

Stupid question, how many miles have the Injectors done?

When was the last time the fuel filter was changed?

You tube video of cleaning the injectors out - DIY Fuel injectors cleaning - YouTube