Is the needle adjustable if it comes not on zero?

It's not adjustable as there's no way to remove the casing without damaging the gauge. The only way I know of to sort of "zero" it out is to get a Lightning (the '99-'04 ones, not the new ones that catch on fire on dealership lots) and run 100 shots of NOS on top of that Eaton twin screw SC! That should "zero it out" LOL

This is the right tool for carburator balancing (equalization)?

https://www.revzilla.com/product/motion-pro-syncpro-carb-tuner?gclid=Cj0KCQjwm9vPBRCQARIsABAIQYcBIUHVlDOiUsPwAVH8Bc2y026Vic6t1DMvPHTE-gGq-siL7UhyC34aAkZbEALw_wcB

Will this work on a2012 Chevy Equinox? Just screws into one cylinder at a time?

Its a vacuum pressure gauge. Not a cylinder pressure gauge.

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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OTC 5613 Vacuum/Pressure Gauge Kit

Product ID: 249195621

Details

Brand
OTC
Item dimensions L x W x H
26 x 23.1 x
Item weight
1.07 Grams
Material
Metal Plastic
Number of Items
1

⏱️Fast diagnostics

⚙️Dual vacuum & pressure readout

🛠️Complete adapter kit

Description

🛠️ Diagnose smarter, not harder — the OTC 5613 keeps your engine in check!

DUAL SCALE MASTERY - Reads vacuum (0-30 in. Hg) and pressure (0-15 psi) with a rugged 3.5" gauge for versatile diagnostics.
ALL IN ONE SOLUTION - Comes with adapters for most applications, so you’re ready for any vacuum or pressure challenge.
DIAGNOSE LIKE A PRO - Quickly identify internal engine issues like bad rings, valves, and leaking head gaskets before they escalate.
BUILT TO LAST PROTECT - Sturdy blow-molded hard case with removable lid keeps your kit secure and ready for the next job.
PRECISION IN EVERY DROP - Accurately tests low-pressure fuel systems to keep your engine running flawlessly.

The OTC 5613 Vacuum/Pressure Gauge Kit is a professional-grade diagnostic tool designed for precise testing of vacuum lines and low-pressure fuel systems. Featuring a large dual-scale gauge with a rugged protective boot, it quickly identifies engine issues such as bad rings, valves, and leaking head gaskets. Complete with adapters for most applications and housed in a durable blow-molded case, this kit ensures reliable, on-the-go diagnostics backed by a limited lifetime warranty.

Specifications

ASIN	B0050SG9KW
Best Sellers Rank	#34,928 in Automotive ( See Top 100 in Automotive ) #12 in Automotive Fuel Pressure Testers
Brand Name	OTC
Customer Reviews	4.7 4.7 out of 5 stars (1,679)
Global Trade Identification Number	00731413418563
Included Components	OTC 5613 Vacuum/Pressure Gauge Kit
Item Dimensions	26 x 23.1 x 10.2 centimeters
Item Type Name	OTC 5613 Vacuum/Pressure Gauge Kit
Item Weight	1.07 Grams
Manufacturer	OTC
Material Type	Metal, Plastic, Rubber
Model	5613
Number of Items	1
Part Number	5613
Thread Style	Npt
UPC	731413418563
Unit Count	1 Count
Warranty Description	Limited lifetime warranty

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