Top sheet is hp 103 cams with python 2 into 2. Bottom is with head work nd compression set at 10.2. Just goes to show how much is gained with a good 2into 1 pipe wich I assume you are running. I also run the Andrews 30 tooth power pulley, love this set up. Thinking more and more about a good 2into 1. I like cavaria’s pipe more every time I see it.