Sorry for late reply guys ended up going with the bosch green 42’s was told for the setup they were the minimum. Seems to be running fine so far so fingers crossed.
Have you checked your AFR ?
I would imagine it has been tuned to suit with these injectors ( I highly doubt anybody would do a mail order tune for something like this)? Assuming so I have no doubt the tuner would have mentioned it if they weren’t up to the task.
Having said that, it can’t hurt to ask the tuner what the max injector duty cycle is, a dyno graph should probably have the AFR’s on it too.