2 barrell carb excelerater pump

[gidis64]

What is the travel distance this is supposed to drop when you go from Idle, mine is not moving at all.Thanks Tim

[Hewy]

If your carb is a Stromberg, the throttle arm they call it the "unloader" setting is 1/4"
Mine stuck also and I rebuilt it with a new pump. I just played with dimension untill got a nice shot so didn't stumble off idle. Seems to work fine.
Hewy

[reallylongnickname]

In the stromberg, if the vacuum power piston pin is bent some what, how detrimental is it to the carb function if it is not working?

[Hewy]

Don't know. But assume the piston could be cocked in the body and stick it. Maybe try to unbend the pin.