Carter Thermoquads ~ 'More General Information'
front primaries have idle jets inside main well, sharing main well with the fuel going to the primary front nozzles. this '72 carb had .034" idle jets. secondary main well has air bleed emulsion protruding downward. secondary rear jets are removed. one thing is certain, there's a lot more air bleed area than fuel jet area, in the front primaries. hence the 95-100 primary main jet sizes. there's a sick amount of air emulsion/bleed/atomization in the primaries of a 72-up TQ carb.
.034" idle jets
front primaries have idle jets inside main well, sharing main well with the fuel going to the primary front nozzles. this '72 carb had .034" idle jets. secondary main well has air bleed emulsion protruding downward. secondary rear jets are removed. one thing is certain, there's a lot more air bleed area than fuel jet area, in the front primaries. hence the 95-100 primary main jet sizes. there's a sick amount of air emulsion/bleed/atomization in the primaries of a 72-up TQ carb.