Right, its a 2wd saff, recent rebuild by myself. When you put your foot on the throttle you have to sometimes press it gently a couple of times to get the revs to pick up, or if you put your foot flat down it almost dies, then suddenly fires into life, and revs fine. The leads are perfect, its had
New Pump,
New Filter,
New ACT
New CTS
TPS checked and tested,
Fuel Pressure checked and set.

Im lost for what to do now

Is there a base setting for the CO screw?