Hi all!! I have a 70 SS Chevelle, 396/350 manual transmission. Cowl induction works perfectly. I appears to run off carburetor vacuum when 4 barrels open up. It was brought to my attention that the throttle switch near the gas pedal was not there and that there should be some type of electrical wiring to make the cowl induction door open. Does this wiring only apply to automatic transmission.. Conclusion The wiring diagrams for a 1970 Chevelle SS Cowl induction can be daunting but with a bit of patience and the right tools, they can provide the valuable information to diagnose and upgrade your car.
Install A Cowl Induction System On Your 1970-72 Chevelle or El Camino Picture This: Two stunning big-block Chevelles parked side by side, identical in power. One has the standard SS hood, and the other boasts a cowl induction system.. Learn about the cowl induction hood system on a 1970 Chevelle with a detailed diagram showing the various components and how they work together for improved air flow and performance.