Both bear out the fact you need to be cautious about choosing a supplier for rebuilt TQs....
Quote from Gary Lewallen (author of the first article)
"Commercial rebuilders:
Carburetors that are mass rebuilt by commercial rebuilders have their useful service life shortened or ended. This usually stems from mixing parts, bad service procedures, and cleaning by tumbling or blasting. Tumbling and blasting removes the factory finishes. This leads to accelerated wear and corrosion problems. In the case of the TQ, the factory linkage was cadmium or irridite finished. The throttle shafts were Teflon coated. Tumbling or blasting removes these finishes and will lead to corroded sticking linkages and binding or leaky shafts. The TQ phenolic fuel bowl can be damaged by tumbling or blasting. Jets, rods and internal orifices are further damaged by these processes. Mixed parts without proper analysis can result in a poorly performing or useless unit. A carburetor from a rebuilder of this nature requires careful examination to determine its future usefulness."
