Found this while looking at a one of the ‘leads’ (‘68 Riviera). I guess if you can’t spell very well, it makes it hard to find good info or help so you do this kind of thing to what could be a great car... https://www.hemmings.com/classifieds/cars-for-sale/buick/wildcat/2219016.html Patrick
Maybe the previous owner had to many tickets and wanted to slow it down! Closest to logical I can get! Bob H.
Jeez.....I guess the owner really wanted a Chevy and had to settle for a Buick instead, the indignity of it all...