i'm not sure, but i think hotfocus may have been wondering about pure NA power from the head. those 300-400 number are combined with the turbo set up right? any numbers from just the head and bolt ons?
But it will require ALOT of good headwork, CAMS are VITAL and you must have the right ones, a nice raceheader/exhuast, a VERY good flowing intake(and i dont mean filter) i mean FULL intake, MAFS, TB, a race intake manifold, matched head ports.
Along with GOOD tunning and HIGH rpm will make 200whp+, its been done many times by a few people
Tom has been there, and so has FC...both making 200-220whp NA...holy ****...
they might not be any pixie dust, but the person that got the package said so and the person that made the package said so. all there else to do is ask. Tom does your head package capable of 200hp? either way a heavy dose of nitrous will power my focus