On the valves wound them up full then back a turn then tighten the lock nut is this not the injector height.?

No i just primed it and tried to start it. I also changed heater plugs could this effect it?

Hi help needed. Have replaced injector seals and now truck won't start it's pouring out smoke when turning over and does fire but when you give it any throttle it stops also when running it/firing it there is a loud nocking noise from the second cylinder I have replaced the seals twice as used...