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Post Info TOPIC: HELP ME!!


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Posts: 8
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HELP ME!!


So I recently bought a 1988 GT/COBRA clone and it has all the goodies I wanted but there is one problem that bugs me and I can't, for the life of me figure it out...when the car is idling, there is like this shreek/howl that comes from the holley systemax upper manifold, and if I put my hand on top of the manifold it stops, but as soon as I take pressure off it builds back up to this friggin annoying whistle...almost like there is some internal kazoo that the holley guys thought would be funny to install on it before they shipped it....ANY ideas would be appreciated

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Posts: 874
Date:

spray some carb cleaner around intake

listen for engine noise changes

if the engine rpm changes, you have found a vaccum leak!

btw what do u mean cobra clone? it looks like a regular GT.. if its titled as a GT COBRA it is a canadian manufactured GT

-- Edited by 93 LX FiveO at 02:32, 2008-11-25

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Posts: 8
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I dont think its a vacuum leak, it's a harmonic noise, you can hear it clear as day with the hood shut and you can feel it if you just lightly touch the manifold but as soon as I lay my palm down in top, it muffles it, the intake isn't cracked and either....WTF? And yes its an original GT with a cobra wing, tailights, wheels, 5 lug, cobra brakes, watts link rear susp, 373's, tokiko struts, eibachs' all around, 306 forged lower, systemax II heads and intake, 509" lift/ 107 lobe sep cam, built AOD, 2800 stall, adjustable fuel reg, adjustable brake modulator, and the list goes on....

-- Edited by fliggnewton at 02:43, 2008-11-25

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