Nitrous Microswitch and Bracket Kits These great looking, high-quality kits include a snap-action microswitch and a CNC-machined, red anodized billet aluminum bracket. All mounting hardware is also included to mount these kits to Edelbrock, Holley or Barry Grant carbs for use with nitrous or data acquisition systems. Download photo. Contact: Bill Groak, Pacific Communications Group (310) 224-4940 (bgroak@paccomgrp.com)