So I am planning on converting to fuel injection sometime soon. I’m set on on a Holley sniper and will go with Mosley Motors setup. I converted my 66 Mustang that I sold to get my 69 and I really enjoyed the fuel injection. I went out to see if there was a pertonix installed in the distributor because from what I remember you need it or it’s better to do away with it for the fuel injection electronics. I could be wrong and hopefully someone will correct me or not. It looks all stock to me, but I have never seen a distributor with a knob on it. What is it for? Remember this is all new to me!