ok so ive been looking into hells bells intro and ive watched the video a number of times and ive noticed that in the intro angus youngs hand stays in between the 5th and 7th fret the whole time and all the tabs on here playat the 9th fret and down at the 3rd fret so my buddy and i tried this out and it sounds like it and it looks like that is how angus is playing it

try it out and let me know what you think