when i turn off my car it keeps sputtering

Abodybomber said
A tach ,recommended.If you have a vacuum gauge,find peak vacuum.:in drive. Back the idle speed ,to where you need.

Sick_Six225 said
Ok I do have a vacuum gauge so I will go ahead and try that

When "bomber" says find peak vacuum, he's speaking of setting the idle mixture screw.........After that, lower the idle speed screw to a acceptable level.

Let us know how it goes.