I need help guys. I did an engine swap a few months ago. My gauges quit working. Only one still working is speedo(mechanical). I've put mechanical water/volt/oil gauges since. I need my fuel and tach working. I figured body grounds on the firewall. I checked them and they all seem to be connected and grounded. Any thoughts?

 

ttt same problem. 3.1 to 350 swap.i put a fuse in and turn the switch and pop blows every time