I was going to take the Desoto Firesweep to the upholstery shop and the chrome plating shop this morning to get some quotes, but had a problem with the car on the freeway. As I increased speed to around 60 mph, the car would bog down. I got off the freeway and headed home. After checking a number of things, I finally found the culprit to be the fuel filter at the inlet of the carb. For now, I removed the ceramic filter from the glass bowl and put in a in-line filter. I don't know if the ceramic filters are made any more or not, but all is OK now. I guess I'll go on my quote trip tomorrow.