Maxum 2500 SCR. Out of Whack Guages

[Mr Hemi]

My gauges work off and on.

Not a problem, but I would like to have a more accurate tac.

Wondering if there is a digital tac I could put in place of my 5-Inch analog model???.
My temperature gauge is out of whack also.

Can I replace the old gauges with something newer or more accurate???

I do have 2002 and it has the smartcraft thing.
I use my phone to monitor pids, and my gauges are not even close.

Any help appreciated.