Throttle linkage geometry
Here's another way you might think about going. Without changing "the whole thing" that is leaving the pedal and cable setup alone, to get more movement you need to move the cable attachment at the carb closer to the throttle shaft, PERIOD.
BUT..........on newer cars, many linkages use a "partial pulley" that is they wrap the able around a "drum" section so that it ROLLS back. And this prevents the linkage from changing ratio as it moves. That is, as the conventional throttle lever on the carb moves, it has a faster ratio until the cable becomes at right angles to the lever....and then the ratio slows lever movement, and as it continues towards further open, and the angle again increases, the ratio speeds back up. This "pulley" type deal prevents that action
Like this
Here's another way you might think about going. Without changing "the whole thing" that is leaving the pedal and cable setup alone, to get more movement you need to move the cable attachment at the carb closer to the throttle shaft, PERIOD.
BUT..........on newer cars, many linkages use a "partial pulley" that is they wrap the able around a "drum" section so that it ROLLS back. And this prevents the linkage from changing ratio as it moves. That is, as the conventional throttle lever on the carb moves, it has a faster ratio until the cable becomes at right angles to the lever....and then the ratio slows lever movement, and as it continues towards further open, and the angle again increases, the ratio speeds back up. This "pulley" type deal prevents that action
Like this
