Feature:

1.Quickly diagnose improper timing, stuck valves, leaking manifolds, improper fuel mixture, spark misfires and much more

2.This kit lets you synchronise the values of the 4 carburettors as well as adjust/set them

3.Each gauge has its own individual damping control and calibration control

4.Suitable for car with a vacuum measuring connection

5.Made of high-quality material, this tool set is very durable and long serveice life

Instructions:

1. Position the gauge properly.

2. Set up the gauge, cut the rubber hoses in two pieces, and connect the hoses with white plastic valves, attach the rubber hoses with the gauge.

3. Remove the vacuum attachment plug-screws from the carburetor flanges or intake manifolds and install the brass adapters in these holes ( long adapters to inside carbs and short adapters to the outside carbs)