idle problem

[chevyman350]

I recently did a headgasket on a 1989 chevy beretta 2.8 mpfi
when i start it up it idles extremely high any ideas
Vaccum?
IAC? 

[Mudbuster]

yes you've got a vaccum leak somewhere probobly a vaccum line that got over looked buit it could also me the intake gasket or throttle body gasket.

[RIP_K52007]

vacuum line off of throttle body... got a couple mixed around?   check vacum line runnng into car for heater controls also..

[badbowtie383]

if you have not found it yet start it and spray around the intake and some of the line with card cleaner it will idle up when you spay the leak