I'd for making some improvements on the engine harness for that idle Regulate valve. I had initially planned to make use of a two wire bimetallic sort valve, but I might be using a Screw-in model idle control valve. This valve uses a stepper motor which allows for larger control https://4age-20v-blacktop-for-sal13198.estate-blog.com/38120278/4age-20v-blacktop-for-sale-an-overview