What is the carb #? Still sounds like a vacuum leak. If it is that rich you may have a stuck float. Also check how much your main throttle blades are open. If you are running a high idle RPM you will be in the main circuit and can make the mixture screws ineffective. It sounds like you have lots of problems in that carb. Are you able to disassemble.and check it out?
Unfortunately the metal tag that has the carb id number on pre 68 carbs was removed. I will look into the float.
Check the needle/seat as well. Sounds like way too much fuel is dumping down the carb. Was this carb recently rebuilt? If not, the idle tubes will need to be pulled & replaced, and the primary well plugs will need to be sealed off. Those could also be leaking fuel into the primary bores.
Carb has not been rebuilt since i have owned the car. Owner for about 1.5 years. Being that it is giving so much issues and unknown the history of rebuilt on the carb, should i just go ahead and get it rebuilt? If so any recommendations of a place to get it rebuilt? Thanks again
If the carb is a remanufactured unit from a parts store, it is likely junk. Those carbs were all stripped of their special features, and built to generic specs for hundreds of different engines to pass emissions tests, nothing else. Rebuilding those is a lost cause. I'd check with Ken at everyday performance for a replacement...he'll have one which will make that 400 purr like a kitten. http://www.everyday-performance.com/ And take a 3M roloc pad and get that paint off the gasket surfaces for your intake manifold...that red paint can't be helping seal the vacuum leaks off. Get that cast iron clean & shiny, some fresh gaskets, and things should seal up just fine.
Does not look like it came form a parts store especially that original owner of the car was very meticulous about this car. But who knows. I will contact Ken and discuss with him. Thanks for the info.
So I got myself a 1/4 thick gasket the one attached to this post. With this gasket alone, no other heat shield or original style gasket, I was able to make adjustments to the fuel mixture screws and so far there is no vacuum leak. I drove around and did not smell the over abundance of gas fumes. Started to rain so I came back home. Will try a longer drive and post back results.
Someone's tampered with the manifold. This may not be a bad thing...but clearly the exhaust crossover channel in the gasket surface is no longer functional.
