curiosity question

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Feb 3, 2007 | 07:49 PM

thirdgenlover

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Joined: Jul 2005

Posts: 345

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From: Indiana

Car: 87 trans am

Engine: 350 TPI bored .040 over

Transmission: modified 700r4

Axle/Gears: stock spline, 3.73 Eaton posi

curiosity question

what is this vacumm line for on our tpi cars, maybe tbi as well, dont know, its just on my tpi though. its the one that connects into the tube that connects to the throttle body, it connects right in front of the left intake runner from the set, it pushes into the thing right above the valve cover, throttle body warmer i think. the vacumm line runs back to the firewall and into a wiring bundle and into the car.
picture is not my engine bay

https://www.thirdgen.org/forums/atta...inebay-009.jpg

Last edited by thirdgenlover; Feb 4, 2007 at 01:32 PM.

Feb 3, 2007 | 07:53 PM

Dirtbik3r

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Joined: Oct 2003

Posts: 942

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From: LaGrange (10min from Poughkeepsie), NY

Car: 1992 Camaro RS - not real slow anymore...

Engine: SPDC 360 MAF EFI /w a Holley Stealth Ram

Transmission: T5 untill it blows up from to much torque

Axle/Gears: Ford 9" /w auburn pro & 3.89's

The bigger one is filtered air (in your case, measured air) that leads into the passenger valve cover. The other smaller one is for the PCV valve which is on the drivers side valve cover.