Carburetors Carb discussion and questions. Upgrading your Third Gen's carburetor, swapping TBI to carburetor, or TPI to carburetor? Need LG4 or H.O. info? Post it here.

MAP vacuum source

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Old Jun 27, 2008 | 02:24 PM
  #1  
HasseO's Avatar
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Joined: Sep 2003
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Car: -88 TA GTA
Engine: 350 tpi
Transmission: TH700
MAP vacuum source

Hi,
Trying to get all the vacuum lines right...
Nothing connected to the MAP, a bit worrying I guess. Where should I connect it? Can I put a T where the HVAC and cruise control gets its vacuum, manifold behind carb?

Oh..forgot, I have a TA 85 lg4

regards
Hasse
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Old Jun 27, 2008 | 09:35 PM
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squirted1's Avatar
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From: mesa, arizona
Car: 84 Trans Am
Engine: 383
Transmission: Tremec TKO
Axle/Gears: 10 bolt 3.73 lsd
Re: MAP vacuum source

if you are referring to the sensor that is hanging in the back near the ac equipment, that is the BARO sensor. It is open to the atmosphere. The MAP sensor is on the drivers side firewall, to the outside of the brake master cyl and I think it's line attaches to a manifold vacuum port at the rear of the carb base plate
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