OK.
So I've finally got my xr3i mfi running sweet (well starting first turn of the key and not cutting out anyway!)
And now I'm turning my attention to fixing anything in the engine bay and a generally tidy up. I have notice now that it had got the trademark cvh nocking tappet sound so I will be changing them and also the camshaft while I'm at it.

My question is.....
Is it worth changing the camshaft for a performance one such as a piper or Kent cams fast road cam?
I was planning on just changing everything for standard original parts just to give the engine a new lease of life but now looking at the uprated performance parts there is only roughly a possible £200 difference.

But is it worth it power wise?
And also what is putting me off is the reviews from people on some fast road cams who have said they have not lasted and needed changing after just the first 1k miles!!