Still having issues with 318 in 75 Cordoba

[tjbindy]

Have rebuilt the carb, replaced fuel filter and fuel pump.

Car starts and idles perfectly. While the choke is still closed off; engine accelerates well.

Once engine warms and the choke is wide open. . .. car hesitates on acceleration from idle and often dies. If I manually close the choke, the acceleration is still good. I have been told to look for vacuum leaks; have tried the brake cleaner method and nothing is found. Looking over the vacuum lines and there are frankly a huge number of them.

Car still has CCIE Switch, CCEGR Switch, TIC Valve, Vacuum Amplifier, Vacuum Solenoid Valve, NOx Valve and so on and so on and so on. Not sure what all of these do. Would it be worh my while to bypass / eliminate some of these?

What kind of vacuum should I expect? I have pulled some of the vacuum lines off while the engine is running and there seems to be no difference. Seem to have strong vacuum on several of these lines.

Am I looking in the wrong direction entirely?
:angry1:

 

[76mopar]

Is this an original carb? Hopefully the float bowls are set correctly. Could be a vacuum leak.
If the car does not need to be inspected or smoged check for Indiana I would remove all the emissions I could. I bought a 77 doba from California and wow did it have the crap under the hood. With the emissions stuff removed it cleans up the potential for a vacuum leak or other problem plus it cleans up the engine bay and it lightens the car up a bit. LOL These cars can use all help they can get.
The fuel mixture could be way off also.

 

[YY1]

How about the accelerator pump?

- - - Updated - - -

The one on my 73 seemed really high (large shot).

I set it to spec (bending rod and measuring plunger height).

It fell on it's face at part throttle take off from stop, so I put it back the way it was.

Runs great now.

 

[bm02tj]

Is the cross over plugged so the carb is cold as I believe 75s have a electric heater as well to take the choke off

 

[tjbindy]

I GOT IT! ! ! ! ! !

When I rebuilt the carburetor, I adjusted everything to the specs that were listed in the rebuild kit. Tonight I went back in and adjusted the float to allow a little more fuel. Problem gone.