Carb adjustment

[86wagproject]

I have an 86 gw that I installed a new shortblock,summit cam edelbrockintake,1406 carb and headers.It runs good,but if you really hit the go pedal quick, it doesn't want to stay idling.Is this just a carb adjustment problem? Also I noticed when i did the tfi that i don't see and mechanical advance inside the dizzy? am i missing something here?

[PhilSine]

Could be one of 3 things....

Vac line to vacuum advance not hooked up (if the TFI still has this, I don't know anything about the TFI's)

Accelerator pump needs adjusting (very likely)

Bowl level too low (quite possible but less likely than the accelerator pump ajustment)

Good Luck.

[Bob Barry]

You do have a mechanical advance, but it is underneath the plate that mounts the magnetic pickup.

I had a similar problem when I replaced my distributor, and discovered it had the wrong advance springs. When I put in the proper springs, I took out too much slack in the heavy spring, so it reduced the initial mechanical advance too much. I loosened it up some, but I think I need to give it more slack so it lets another 4º or so some in before it slows down the advanc curve.

A sticky accelerator-pump arm can also cause this kind of stumbling/stalling. Make sure the linkage is hooked to the middle hole; that's the factory setting, and that has the longest stroke of any of the settings.