I've seen kits on Ebay to convert idiot light round dash to gauge style dash.
http://cgi.ebay.com/ebaymotors/1970...ptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories
http://cgi.ebay.com/ebaymotors/1970...ptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories
That sounds like a lot of cutting and splicing wires.I have the Chevelle sweep dash now. I know there is a kit to convert the idiot to a guage system but I was told that a sweep could be altered to work on a guage dash.