Quadrajet Problem Solving > Dialing in your rebuilt Quadrajet carburetor

Slight popping out of carb

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77cruiser:
What's your timing like?

ALS71GS:
Timing is 32 total mechanical,10 on vacuum can, on manifold source.

Cliff Ruggles:
The vacuum advance isn't a player at heavy/full throttle so where you hook it up at doesn't matter.  Same with the APT, it doesn't adjust fuel delivery other than very light throttle/light load.....Cliff

ALS71GS:

  Cliff, I do have a very slight stumble/hesitation just off idle,under very light throttle,more noticeable bef cure this?ore fully warmed up.Will a higher apt setting cure this?

77cruiser:
What's your initial timing? Maybe try about 4 more degrees. Adjusting  the APT up might help too.

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