i have a xr3i with a rs turbo engine and box init. iv just finished puting it all in

and it runs fine. the thing is noticed that the temp gauge goes strait to the top why is this? is the wireing different and if it is how do i change it about?
and my fuel gauge doesn't seem to work. im not sure how much juice is in it but the neadle doesn't move at all. any help would be great