6-pac carbs won't idle down!!!!

[snakeskin]

i have a six pack 440 , just rebuilt carbs , it has a older mallory dual point distributor, had been setting about 4 years , engine runs good , just replaced intake gaskets and put new brake booster and master cylinder on car it cranks fine but will not idle down continues to rev up anyone have any suggestions why it does this and a fix  

[BIG MIKE]

did you check the linkage?

[Chryco Psycho]

 sounds like a vacuum leak could be in the new booster start checking all the vacuum lines  

[Rare_T_A]

Hi,

Go to my web site and click on T/A articals and then six pak carb tips. This artical was very helpful to me. The pages will be readable when you download them.

http://freiss.tripod.com

[Chryco Psycho]

 Are the end carbs held open but the linkage at all ??

[Dill]

I had a similar problem..and the choke was stuck on.

[Rare_T_A]

If the linkage that closes the outboards are out of adjusted it can hold the plates open a little. Other wise the outboard carbs open under venture vacumm. The signel comes from the center carb. When the volume in the center carb is great enough it signels the outboard carbs to start to open. Once this happens the air draw on the outboard plates gets so great it over takes the diaframs and they open all the way.