Yes, I dynoed with the 1050 in 2007 with Dart 355 CNC heads. For 2008 I bought a 1200 Pro Systems carb, made a cam change, new pistons and picked up 74 hp. With the Darts I was running a 1.7 rocker arms which is .799 and .765 lift. I was disappointed in the Dart 355 CNC heads on the dyno. Now I have the Edelbrock 24 degree from RFD and I am keeping the same cam, but I am going to go to a 1.8 ratio shaft rocker to give me the higher lifts.