Off & on lack of power, Wtf?

[Mrk_Mickey]

I've had a few cases of very noticeable (and worrying) lack of power with the VR. Sometimes it'll be fine, but sometimes even if I leadfoot it, it feels as if there's hardly any power there. I've had what feels like THIS problem with another car, after a retard related to me sprayed the engine filling the spark plug wells with water.

When the problem is there, I test it with 2nd gear as I feel most response there (plus speeds don't get too big). I'll put my foot down, and it will climb slowly up the revrange and sometimes I'll even feel a misfire or a bit of a jolt, which is the main reason for my concern

A trusted friend reckons it could be a number of things, eg sticky injector, sparks or sparkleads, blah blah blah.

It's really getting to my head, driving the car..I don't wanna drive it but if it's not that bad a problem