Most all of the threads I read said 600cfm would be plenty for my engine, plus I have been fouling plugs so I figured the smaller jetting would cure that. The power was gone. It felt like it lost 75 ft/lbs of torque down low and plenty of HP up top. I think I am going to try to rejet the edelbrock 750 to lean it out a little. Any thoughts on what size jets or what else I can do?