I installed a skunk 2 intake manifold and now i have a problem with my idle. the idle goes up and down even after the engine warms up but only does this when its cold outside(50 degrees or lower) Any help greatly appreciated!!

 

dude i have the same prob...u should look to c if u have a vacume leek..or iac...or if ur intake is leeking cuz that will cause a big prob

 

+ 1 for vaccum leak check.

On another note have you read up on the negatives of using the junk2 manifold.. unless you are boosting you will probably end up loosing power across the band. the euro-r manifold is a much better design if you are sticking NA

 

the skunk 2 manifold picked up signifigant mid to high range power. i didn't lose any power anywhere. the iac was bad and i replaced it so now everything is good.