Thread: Tuning carb with a Vacuum Gauge
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Old 10-08-2015, 09:05 PM   #29
prostreetC-10
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Re: Tuning carb with a Vacuum Gauge
Quote:
Originally Posted by cableguy0 View Post
Park. Being in gear puts the engine under load which will lower the vacuum readings.

That and it also requires you to run along side the truck which can be tricky.
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