Jon,
Thanks for the heads up, there is so much bogus stuff out there now it makes the head spin.
I had a recent encounter with a "rebuilt' Q-Jet for a truck. The owner purchased the carb on ebay for his 70 C20 Longhorn pickup with a 400 big block engine. It was represented as the correct unit for this application.
The carb had the original numbers machined off and a non GM part number stamped in it's place. It was beautiful with all the linkage components plated, etc. I was assisting him with the final phase of installation and the initial start up. It just plain wouldn't run, when it did start it would wheese, or stall out, and we couldn't get any RPMS. We went back and checked everything, it had good spark, double checked for vacuum leaks and all checked out OK. We finally pulled it and took it to a local pro who tore it down. He couldn't really find any thing plugged up or unusual except it had a Buick base. The owner called one of his friends that had a carb he could have. We put it on and it fired up the first time and ran great. So much for ebay rebuilds.
Fred
