Hi guys my fiesta rs turbo engine is spitting in side the engine when you try to rev it up I just built the engine bottom to top for my Orion its start fine but when you try Rev or put the car under load it's spitting like mad thanks guys

 

Spitting? Do you mean missing as in mis firing?

I would start with all the normals, timing, earths, plugs and leads, injectors...the list goes on and on but you will need to rule each out.

 

I change leads plugs coil took the 701 beige injectors out put the standard ones on still no change its like its detonating when try Rev or drive

 

Is the timing spot on.

 

As above, check the timing. Then check your plug gaps... then your ignition coil.

 

I had the same problem on a cvh, ended up being a faulty batch of plugs!