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Old 12-02-2018, 12:35 PM
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babywag babywag is offline
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Join Date: Jun 08, 2005
Location: Land of froot loops and cukcoo-nuts, CA
Posts: 9,569
apples vs. oranges

A sniper system utilizes a wide band and therefore is able to learn/deal with afr changes much better than a GM TBI.

You do NOT want EGR active @ idle.
Hookup would be ported vacuum to a CTO to EGR.
A delay valve may be needed as well? To prevent hesitation when opening.
The CTO would prevent EGR until engine is fully warmed up.
It will not be an ideal setup, but I see no harm in experimenting.
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