I have just stuck a set of iridium ik22 plugs in my c20let engine to try and iradicate this misfire i keep getting. Altho the car runs better it still misfires.
When i bring the power in gradually the car is fine and rarely misfires but if i boot it then it will misfire nearly all the time until i smooth the throttle back.
What could be causing this as i have replaced the coil, dizzy and plugs. Could it be under/over fueling due to the c20xe fuel pump im using?
Its only running 8psi at the mo but the engine was setup running 16psi when in the prev car. Could this be the prob?