Has anyone out there gone from the rectangular spedo to the round cluster spedo tack and gauges. Where is the best place to get the new cluster? We would appricate any help from someone who has done this.
Thanks.

If you go that route you'll not only have to replace the gauge cluster, but the entire dash housing as well. Just about any parts house has the reproduction stuff... OPG, NPD, Year One, etc. And you can find decent used ones on eBay. The Monte Carlo dash will fit, but it has a woodgrain finish. If you just want to go to round gauges and don't mind aftermarket, you could try giving Covan's Classic a call. They just came out with a new dash bezel for 70-72 models that takes Autometer gauges.