my 95 Formula uses the VDO Vanguard series gauges. if i decide to change them to something a little more modern (think Livorsi or Faria) will i have to change out the sending units too? any suggestions on where to start shopping?

I replaced all the VDO gauges in a '97 312 that I had, and the only sending unit that needed to be replaced was the fuel tank. Easy to do. Good luck!

Just bought an entire set of Livorsis connectors and all from Victory Marine. I am also replacing VDO, have not installed yet but will keep you posted.