I seem to be chasing gremlims lately, probably cause its not getting used much.
My newest problem is that it stalls when i come to a red light.
was there once an antistall device for these carbs (1848 Holley) to fix this problem.
Does any one have a clue about these ?
Many thank to all.
Got fresh clean gas in the tank? Sediment collecting in the carb idle passages caused mine to stall at idle.
fresh gas, cleaned float bowl etc
Timing way off.
What type of ignition do you have?
Most of us know who Dave Freiburger is. He just released this video. Watch it to see what he ends up fining is his stalling problem in his 1971 Torino station wagon with a 302 2v.
He spends a lot of time fiddling with the carb. But that is not what the problem is.
Exploring ABANDONED PLACES and Americana in an Old Station Wagon (youtube.com)
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OE distributor with Pertronix.
had been working fine till recently.
should i crank in a few more degrees of advance ?
What do you have the red wire from the Pertronix module connected to?
I don’t know enough about your vehicle, so hard to predict fault.
But, cars with an automatic usually have a dashpot to prevent stalling when in a emergency stop situation.
ie when vehicle stops at stop light.
A manual car does not have a dashpot.
Peter 
You should set the timing with a timing light.
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Mine was originally a 351W 2v Auto A/C and did not have a “dash pot “.
Yes, my timing light is a bit cheap so i may invest in a quality timing light and thro some more advance at it , may be a timing tape could make things a bit clearer as well .
when get motivated i will check the idle screws and float bowl.
Im waiting for a new fuel pump to arrive and try that also.
It was all working fine till recently, so im not sure why it should die on me now.
The last time was in a busy intersection it stalled, cranked it over a few times and it fired up, hence my lean towards fuel delivery ?
Wheres the best place to check vacuum, valve above the thermostat ?
back of the carb, vacuum port side of carb, manifold where the brake vacuum is ? other ?
Usually carburetor problems are ignition caused.
Vacuum or centrifugal timing advance are not in play sitting at idle. So don’t worry about advance until you get your timing set correctly. Manifold vacuum can be checked at any of the ports on the intake manifold. Ported vacuum is present just above the throttle plate at the port on the carburetor.
should i time the dizzy with or with out the vacuum line attached or blocked of at both ends ?
If it’s a single diaphragm dist connected to ported (carb) vacuum, you can just leave it hooked up while you set timing because there won’t be ported vacuum present at idle. If it’s a dual diaphragm, one side is connected to manifold vacuum, and this side needs disconnected and hose plugged. Rub some chalk on your timing lines and they will be a lot more visible with a weak timing light.
Torque converters can also cause a stall at a light. Try shifting to neutral at the light and see if it still stalls at a stop
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The instructions on how to time an engine are in your copy of the factory shop manual.