Hello ford owners i need help

I have gone back to my youth and bought a 91 xr2i. I am having problems with the car loosing revs and cutting out. the car was stood unused for approx 6 months i have changed air temp sensor,alternator cleaned and check,oil flush and new oil, new battery, injector flush.
Would really like some ideas of what it could be if theres any xr2i owners out there.

Thanks in advance