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Welcome to the board from SW Washington State...........
You'll find alot of changes since the air is long gone.....
Guess is that the open unit on the carb may be the one for the pcv...........
the metal heat from the exhaust manifold sounds like the choke tube like the older small blocks.......
If you like to post pics let me know.....would be glad to post them for you.........
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1970 Chev CST
2003 Harley Fatboy
1975 Chevrolet Step Van
1956 Chev Bel Air
1977 Blazer 2WD For Sale $3000.00
1978 Blazer 2WD For Sale $7000.00
1978 Silverado
2005 Monte Carlo
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