Hysteric,
Post #45. There are two aspects to superior metering of these carbs, so one at a time.
[1] You are the one making the claim that 72 & up has superior metering. How/why? I do not know. I have read the same info you have which are just claims, never seen any testing or comparisons. What does superior mean? Better mileage, more power? Other?
[2] The 71 TQ uses the same dump tubes in the secondaries that the CSTQ used [ like a QJ ].
The 72 & later used dump tubes that have a rounded, closed of bullet shaped tip with a small hole in the end. There are a few holes along the length of the tubes that vary in size, position & number. Despite my best efforts, I have not been able to find how the size, position & number of these holes was arrived at. They vary depending on which engine the carb is used. Chry carefully calibrated these carbs for each engine. Obviously if the manifold is swapped or any other deviation from stock, all bets are off regarding accurate 'superior' metering....& the original, single outlet, design is likely to be better.
