I took off the heat stove... turned on my car and heard a rapid clicking noise coming from behind the alternator and below the intake tube... But the heat stove back on and still hear the noise then felt a hose coming off the valve cover... Felt it vibrating and i guess thats where its coming from... This is on the driver side of the engine.. What is it(hose) for and what could cause the noise....???? Thx

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92 Camaro 305 TBI Automatic. 2.5 high flow cat and 2.5 pipes into3.5in tip, shift kit. Tinted windows(legal), Spark plug wires and plugs...

Future mods. Headers, O.E., any other advise on getting to 300+ HP would be appreciated. Thanks
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System = Sony explode CD/MD receiver, Rockford 6x9 Fanatics, 4x6 Clarion in the front, 2 12" Hx2's(Rockford) in custom box(black carpet) 1 farad cap, 800x2= 932 total watts Rockford Amp 4gauge wire kit.

 

Could be the PCV valve. Its in the valve cover right around the area your describing. Some pcv valves can be noisy. Since its a $2 piece you may want to change it any. Also check your vacuum lines especially the ones to the air cleaner and make sure they are ok. A vacuum leak can cause the pcv valve to not recieve enough vacuum for normal operation.

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91 Camaro RS 5.0L Black Convertible 700R4
** Added so far **
*GM Wonderbar
*Alston SFC's
*Turbo City Inj Spacer
*Dual Snorkel Air Filter
*March Performance Pulleys
*GM 3.42 Gears with OEM Zexel
*Edelbrock headers
*3" High Flow Cat
*3" Dynomax Exhaust
*Walbro 255 lph Fuel Pump
***Future 330hp Vortec Crate with LT4 hotcam and 454 TBI