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1975 chevy 4mv carb with vacume problem help!!!!!
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kjeh29
New User
| Posts: 2
| Joined: 09/08
Posted: 09/30/08
11:07 PM
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dose anyone out there know how the vacume on the 4mv carb works or where i can find a diagram for this i currently have a 1975 chevy 350 4x4 and the carb is missing parts that i know is for sure and i have a carb that went on my 1977 chevy 350 that i can put on there (it fits i already checked that out)but it has more vacume ports then there are lines on the engine. i know this is cutting into my horse power and fuels ratio so i want this fixed asap. anything will help thank 
'75-4wheeldrive
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SnoMan
Addict
| Posts: 2005
| Joined: 03/08
Posted: 10/01/08
05:58 AM
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Here a picture is worth a 1000 words. Some ports can be capped but kinda need to see what you are talking about.
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