Xr3i efi

Misfires, stalls, no power won't rev!

Changed the crank sensor (new one)
Have good spark across all 4 new plugs
Changed the coil pack and map sensor. Checked pipes for air leaks.
Fuel pump primes as it should
Changed tps
Changed sensor in thermostat housing. Need to try air tempurture sensor, have one to try.

All sensors are off another engine and seem in good condition.

Plugs seem dry and black even tho they are new and you can smell fuel so it could be over fuelling?

What else can i check for its driving me mad!!