i bought an 88'spec xr3i.i bought the car as a non-runner.i tryed turning over the engine and i found out that the fuel pump was seized so i bought a new one.when i tryed to start it again it started for a few seconds and cut out again.at this stage it was very smokey.so i took off the inlet manifold an took out the injectors and found 2 were blocked so i cleaned them.after that i tested each one and they were all working as they should.i tryed the car again and it ran for a while but still very smokey.i then wound down th afr an dnow the car is ticking over but when i try and rev it it dies down and cuts out.!

any ideas what is wrong with it.??