belt slipping noise coming from intake manifold

[j87w]

I have a 95 LS. I just put a new clutch and flywheel in it and replaced the throwout bearing and pilot bearing to. I noticed everytime now when the engine is revving down theres a squeal noise from the right side of the intake manifold. I listened to the tranny area while the hood was popped and its for sure coming from under the intake manifold right side. Anyone know what that would be?
Thanks

[teg92]

maybe your intake manifold gasket broke some how and air is coming out, Does your idle funny?

[j87w]

Ya I was gonna start another thread for it. But at idle its fine. But say I hold it at about 2000 rpms it idles from like 2000-1700 just like back and forth just wonders. Im holding the throttle totally still to.

[teg92]

I would change the intake manifold gasket

[j87w]

Im gonna do an LSvtec setup within a month or so and ill replace the gasket on the new head. Thanks. If anyone else has any ideas I would like to know. thanks.

[k.a.y]

when you replace the IM gasket, throw on a Hondata one. It prevents heat soak to maintain a much cooler intake air charge. I've only been able to find them on ebay...

[j87w]

I know. Thats what I planned on doing. Do you know how much one would run. I havent really checked prices.