I used this cam in my xr8 220 as well. I machined the heads to allow the fitting of the Crow 7333 dual springs to go with it. It pulled 205 rwkw before I tuned it with the Quarterhorse, so the above dyno sheet is a fair indication. Good to see the “super rich” stock wide open throttle
afr’s down into the 10’s. But that’s normal too.