i would like to no how they can be adjusted..... cvhs ( not all but most ) had hydraulic tappets, which as far as i was aware are not adjustable.
unfortunatly they would have to be replaced, or if you are realy tight for cash you could clean them.
engine wise u could put in a 1.6 cvh from an xr3 or any 1.6 cvh escort realy, with little work
hth