When refitting the cam sprocket I noticed there is about 1/2 an inch adjustment on the bolts, I set them hard left so the timing chain lines up with the cam notch. However looking at where the bolts used to be on the sprocket the timing chain tdc marker would have been to the right of the cam notch.. does this adjustment make any difference in firing?

Also will 1 1/2 turn as opposed to 1 turn back on the injector screw/nut cause any loss in power?

its the marks/pins lining up that are important, not position of cam sprocket, youve probably fitted sprocket a tooth different to as was, the adjustment given by slots should equal a tooth so that cam can be set exact otherwise it could be part of a tooth out, set injectors correctly obviously injector will marginally have less stroke,you might not notice but should still be set correct

Ahh I forgot to line up the bell housing crank pin with the chain.. was out about 5mm on the sprocket adjustment.
I went for a run like this & noticed it underpowered & smelt abit.. How far out before the valves hit the pistons?
Obviously not good to run like this but hope no damage done :/