well, what are your plans for the car? at $169 the king cobra is a good deal. assuming of course that you arent going to go much farther than an h/c/i combo. if you plan on adding a blower or any other power adder down the road, i would call walt at pro-motion powertrain (954-771-5575) and speak to him about a custom unit. as for the aluminum flywheel, the lighter the rotational mass, the faster the engine can rev. my suggestion is do it while the tranny is out and get it over with. ultrarev.com has the fidanza for $319.