Thread: 70 Z28 exhaust
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Old 05-16-2007, 10:39 PM
Johnny Horsepower Johnny Horsepower is offline
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Default Re: 70 Z28 exhaust
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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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