[Paul Ceasrine]

dart4forte,

Do I see an AM Radio in John Bedell's Dart?
The D-Dart was a radio delete code.
They were all equipped with a heater unit though (w/functioning controls).

On the Factory Holley #4160 carburetor modifications.
1)..Part #66. Secondary diaphragm spring was changed.
Since the D-Dart was a 4-speed/manual shift, the secondaries needed to open quicker for better mid-range response.
2) Part #105. Primary pump diaphragm assembly was changed.
For higher pump pressure, and increased fuel volume.
3) Primary metering jet changed.
I think the carb was equipped with a #66 jet (.0690 size) as standard.
It may have been replaced with a #73 jet (.0790 size).
Recommendations included changing the primary jets as needed to;
A) #75 jet (.0810 size)
B) #77 jet (.0855 size)
PC