Carter Thermoquads ~ 'More General Information'
1972 Mopar 340/240 HP Engines
#6138S {Manual Transmission}
#6139S {Automatic Transmission}
Primary ....... 1 3/8" {1.375"} ..........Venturi 1.063"
Secondary ... 2 1/4" {2.250"}
Primary Jets ....... .095"
Secondary Jets ... .137"
Metering-Rod ...... 1940 {.070" Economy ~ .046" Mid ~ .040" Power}
The 1972 Thermoquad's were now using Solid {Liquid} Fuel Metering.
Also, the Primary-Jets were now Screw-In type that screwed into inserts located
in the Main-Body instead of the Upper-Bowl cover as in the 1971 Thermoquads.
All Thermoquads were set with a Needle-and-Seat size of {0.0935"}
Again rated at a 'true' 737 CFM's
The 1972 Thermoquads went to 'richer' Jets.
'1972' 340 Intake Manifold ....... #3512100
* Generally regarded as the 'Best' Intake and Thermoquad combination.