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Old 07-11-2021, 09:04 AM   #2
Just here to tinker
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Join Date: Jun 2008
Location: Holland, MI
Posts: 3,355
Re: Smog equipment removal on 87 TBI

I donít think youíll notice a gain buddy. Those TBI motors arenít power makers. If you do remove it all though, I think the plug size is the same size as a drain plug for a Cummins 5.9 oil pan. Iím pretty sure. Been awhile since I played with those manifolds.
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