marlyman

just put my cobra upper/lower on an pretty sure plugged all the vacuum lines up properly but im leaning on the idea i didnt because the idle is pretty ruff an tends to die if i dont give a little throttle..i noticed the gain of performance but just dont like the ruff idle any ideas? i shouldnt have to reset timing just cuz i threw on an upper/lower intake right? im guessing its the hoses/lines are put on wrong uhhhg i appreciate any input thanks

projectresto83

Pull the upper back off and recheck all of your vac lines

Super88

I agree, sounds like vacuum. double check your work

ttocs

what about a leak on the intake also? Did your follow the tightening sequence to tighten down the new intake and torque them correctly or just slap it in there?

Super88

ttocs is right, make sure you tighten from the middle bolts first, them move towards the ends of the intake.