Dedicated to the Promotion and Preservation of American Muscle Cars, Dealer built Supercars and COPO cars. |
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#1
05-14-2007, 08:30 PM
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Re: 70 Z28 exhaust
If the car has the a.i.r. system in it... sounds like the pump and the diverter valve need to be restored. My old '69 Z popped and crackled. Once we sent the smog unit out to Jerry MacNeish, 95% of the popping, crackling went away.
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#2
05-16-2007, 11:39 PM
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Re: 70 Z28 exhaust
[ QUOTE ]
If the car has the a.i.r. system in it... sounds like the pump and the diverter valve need to be restored. My old '69 Z popped and crackled. Once we sent the smog unit out to Jerry MacNeish, 95% of the popping, crackling went away. [/ QUOTE ] Can i just disconnect the a.i.r. to eliminate that from the crackle causer possibilities? John
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