just removed the breather box/firebox on my 3 door 2wd cosworth to attatch hose for grp a breather and it was a bit stiff to get out but when i put it back in it seems a lot looser is it meant to be glued in or have a rubber grommet or anything or is it just a coincedence

 

Same when I was doing my 200 block. I used some araldite/ chemical metal style gasket sealer- this should work fine.

 

do you mean the flametrap mate?

 

when i fitted my ggr one it was the same,just wants a drop of glue as already said,just make sure you only put it on the adaptor and not in the hole,that way it cant be pushed inside the engine when you push it in