my idle runs to high only sometimes but other times it runs great it's a 1982 wagon, so i think it might just be the choke that sticks but i am not sure so what should i do?

That's a good place to start. Either swap on another one or see about cleanign yours up. Might just be sticky.

 

Vacume leak can also be a culprit. This would sound like an intermitant one. Prolly from a loose clamp or small crack? Maybe a vacume line thats just starting to melt/crack? Check those all out.

 

Also hear lots of ppl having problems with rotting out carb base gaskets. Try misting some ether / starter fluid by the base of the carb. See if idle increases shortly. That can help find vacume leaks also.

 

Good luck!