[TheCarKid]

I am at a complete loss. i Have a 65 200ci that won’t idle right. When I start it up on cold start it idles beautifully for about 10 seconds then it begins to misfire and drop rpm until it dies. I have tuned the carburetor to the best that i can. these are the parts i have replaced
Fuel: new tank, new pump, new hoses, new filter, brand new carburetor
Ignition: new wires, new plugs (points look good and since it idles good at startup they work)
air:new filter, valves are not stuck
compression is good as well.
I have replaced everything and I don’t know what to do. if anyone has any ideas please help. I don’t want to pay to being it to a specialist.
Thanks all.

 

[TheCarKid]

I'd start by looking at the choke.

It has a brand new choke that I have already adjusted and works perfectly

 

[TheCarKid]

It sounds to me like it might be running out of gas. Like the carb bowl has enough to get it started, but then it can't keep up.
I'd unplug the hose from the carb and run it into a jar and then start the car (or at least turn it over) and see if it shoots a good amount of gas out into the jar.
Maybe change the gas filter again.
And pop the top of the carb off (assuming it's an 1100) and check that the float is ok and the needle valve's adjusted and the seat's not gummed up.

Just so we all know what we're looking at, what kind of carb do you have and what kind of gas filter and fuel pump, etc? Everybody like pictures too if you can grab some.

I have already taken the top of the carb off and checked it. everything is where is is supposed to be. And the jar thing is a good idea. I will try it. I can also post some pictures in the morning.

 

[TheCarKid]

Can you "goose it" and keep it running until it warms up?

yes if i press the gas it will run, but misfire badly.

 

[TheCarKid]

I vote vacuum leak, weak spark, improper spark advance/advance curve or a combination. Got pictures of the carburetor, from the passenger side with the air cleaner removed, and the distributor breaker plate, with the distributor cap removed?