How much for 71 Thermoquad?

And this is from the Chry Master Technicians Service Conference Reference Book '72-1 on the 1972 TQ carb, 13 pages in total. P. 2:
"TQ metering calibration is leaner because mixture enrichment is not needed to compensate for fuel expansion power losses. As a result, exhaust emissions are reduced without seriously affecting engine performance...without seriously affecting engine performance....without seriously affecting engine performance.