I dont have all the answers. I just have a direction i would like to try. I think compression will be around 9.5-9.75. Andy at adm will be doing the build for me when its time. He knows best. I just want something a little different. I love the stump pulling torque of a maggie. So thats what i would like to capitalize on. Heavy cars need torque to get them to move. My 417 maggie combo runs hard. Just not hard enough. But does it ever.