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Ufoman420

08-11-2011 11:27 AM

Good place to test vacuum on 454 merc?

I just got done rebuilding my carb,(weber 4bbl, stock) i would like to use a vacuum gauge to tune it. There is no vacuum ports that I see on the carb. Is there a place I can test vacuum to tune this bad boy. Any help would be appreciated.

skydog

08-11-2011 04:05 PM

Should have some thing on the intake

magnum350

08-11-2011 04:19 PM

If your carb looks like mine, unhook the rubber line from the actuator and hook it up to your vacuum gauge.

http://i868.photobucket.com/albums/a...Wood/carb1.jpg

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