Interesting! I too run the blocker rod in my street car. Installed the Fairbanks shift kit, which is the same one I've run in all my cars. Other folks like B&M and Transgo, so guess it depends on what people are used to. Next month I am having the unit rebuilt with heavy duty parts to handle the power of my new engine. And thanks to Kim, I now have a 4 pinion planetary in case the original only has 3.