Edelbrock intake?

[ddt4436]

I have a 1990 mustang gt with a Edelbrock intake(not RPM). There is a hose that I cant find where it goes running from the upper intake. I no longer have the smog hooked up so is this hose suppose to run there? I have it plugged as of now. Also my car want idle, could this be a vaccum leak?

 

[Celeb]

I have a 1990 mustang gt with a Edelbrock intake(not RPM). There is a hose that I cant find where it goes running from the upper intake. I no longer have the smog hooked up so is this hose suppose to run there? I have it plugged as of now. Also my car want idle, could this be a vaccum leak?

if youve got an open hose on the intake then yes, youve got a vacuum leak. One will go to the egr, one to the fpr, vacuum tree, bigger one for pcv, one for smog. If you had smog hooked up before and now its gone and you have a leftover hose off the intake, pull the hose off and put a rubber cap in that intake port. Or if the intake is already installed and you cant get your hand under there, use a bolt and plug the hose