Engine Cylinder Head Air Hold Adapter Hose Ends - Braided Rubber Crimp-On or M2C138-CJ such as required

or M2C138-CJ such as required by Ford

3057-1 - 1978-1988 GM G-Body

Notes: Fits 2/4 Wheel Drive and all Wheelbases

the Schrader valve allows you to make ''on the fly'' gas pressure adjustments between heat races and features to adjust for varying track conditions

Finish Line Factory's precision made

Engine Cylinder Head Air Hold Adapter Hose Ends - Braided Rubber Crimp-On or M2C138-CJ such as requiredNow that you have the PROFORM Valve Spring Tester you'll need a set of PROFORM Air Hold Adapters to remove your springs with the heads on the engine. It's a simple 3 step process: screw the air hold adapter into your spark plug hole, attach air fitting, and then an air hose. The air pressure will hold up your valves while you get to work!