You want a fan rated for your HP, not necessarily just cfm flow. IIRC, when I bought my Black Magic e-fan it was rated top 225hp w/A/C. I would just give Summit or Jegs a call and see what they say. You might also need to consider running two fans, one as a puller(traditional location), and one as a pusher(in front of the rad), if a large one wont fit between the rad and the engine.
