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Old 11-30-2020, 05:10 PM
72redGTO 72redGTO is offline
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Default 1972 GTO Ram Air set up

On a 72 GTO dual snorkel ram air,. there is an air inlet thermal sensor mounted on base of air cleaner.
It has 2 ports.
Question:: Does
one of those ports go to the air cleaner diaphragms and the other connect to the intake manifold vacuum supply fitting?
However, the vacuum fitting is located in front of the carb on intake but the thermal sensor mounts towards back of air cleaner.
Is so, where do you route the vacuum rubber hose?

Thanks to all responses

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Old 11-30-2020, 05:33 PM
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unruhjonny unruhjonny is offline
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iirc this has been discussed a couple times in the 70-73 Firebird sub forum;
HERE is one good link.

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1970 Formula 400
Carousel Red paint on Black standard interior
A no-engine, no-transmission, no-wheel option car.
Quite likely one of few '70 Muncie three speed Formula 400's left.


1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing)
2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs)
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Old 12-01-2020, 06:18 AM
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Kenth Kenth is offline
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Like this or similar to have both motors act together:
(Thanks 70RAIII for the picture).
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Old 12-01-2020, 02:12 PM
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unruhjonny unruhjonny is offline
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/\ oh yeah!!

I believe partway down the page linked it was mentioned that the aircleaner was hooked up wrong, and that the diaphragms needed to be chained together,

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1970 Formula 400
Carousel Red paint on Black standard interior
A no-engine, no-transmission, no-wheel option car.
Quite likely one of few '70 Muncie three speed Formula 400's left.


1991 Grand Am: 14.4 @ 93.7mph (DA corrected) (retired DD, stock appearing)
2009 Cobalt SS: 13.9 @ 103mph (current DD; makes something north of 300hp & 350ft/lbs)
  #5  
Old 12-01-2020, 06:23 PM
72redGTO 72redGTO is offline
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Excellent 😊
Thank you

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