Thanks for the reply mate.

It has to be the fueling, mainly for the fact the car ran fine on the new unit before I stupidly touched it! Plus I managed to sort the idle better (with screw more in than before) by tightening the accelerator cable... So that obviously raised the revs and allowed for more fuel, correct? I know messing with cable isn't the way to do it, but I had to test it that way. All is getting sorted on Monday anyways as my mechanic mate is coming to sort my mistakes with the use of his equipment.

Symptoms that did show were vaccum read between 20 (like it read before I fooked it) and 25 (high rev). This was on different idle attempts. Also rev counter would sit at 1,000 but after a while started to dance between 500 and 1000 as engine dropped rev and gained again without me touching anything.

It'll be fixed on Monday, but I so wish I never touched it to start with!