I would put a hyd roller in it. You will be able to make more power than a hyd flat and you will never have to worry about wiping a lobe again. That is a good feeling. Also, you have a rare green light situation to spend money on your car that normally would be frowned upon by the sig. other. This is all for junior...money is no object. It's all about building the safest, most reliable machine to get him home safely at night. Heaven forbid it break down on him.