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#1
11-23-2025, 02:39 PM
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70 W30 Pollution Control
I was curious what pollution control system GM used on my non CA 70 W30 automatic AC car. Once I know what system it has would like to see if it is working.
Thanks Lawrence
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65 Corvette Coupe L78 67 427/390 Vette Coupe unrestored 67 L-79 Vette roadster (Top Flight) 69 L71 Roadster Survivor 69 L46 Roadster Survivor (Sold) 69 Z/28 RS (Sold) 69 Dodge Charger R/T 70 W30 442 Auto Air Survivor 2016 Z06 Coupe M7 70 AAR Cuda (Sold) 69 L78 Chevelle (Sold) 
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#2
11-25-2025, 08:08 PM
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Do you have the charcoal canister on the RH side?
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1970 Cutlass S W-31 - platinum, blue stripes, blue buckets, M14 3-spd 1970 Cutlass Supreme Y74 Pace Car #79 - IU Little 500 Pace Car 1970 442 - white, red stripes, white buckets, M21 4-spd
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#3
11-28-2025, 01:04 PM
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No, my car was an Indiana car when new. Have done a little leg work since this post. Perhaps only a pcv valve and an egr were the only devises?
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65 Corvette Coupe L78 67 427/390 Vette Coupe unrestored 67 L-79 Vette roadster (Top Flight) 69 L71 Roadster Survivor 69 L46 Roadster Survivor (Sold) 69 Z/28 RS (Sold) 69 Dodge Charger R/T 70 W30 442 Auto Air Survivor 2016 Z06 Coupe M7 70 AAR Cuda (Sold) 69 L78 Chevelle (Sold)
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#4
11-30-2025, 01:56 AM
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Car didn't have egr....PCV valve is all it has.....routed to the front of the alum intake on a '70 W-30.
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Patton Glade 70Post Restorations Austin, TX
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