as others have said... the reg is indeed a minker reg (according to nik's site, n i know he researched this a LOT)

the engine does however look like a normal TT lump... biggest giveaway are the 2 extra injectors on the throttle body... the minker used only 6 injectors and different management.

the intercooler is also a boggo std TT225 cooler...

and a minker wont do 175mph

a minker should easily make mincemeat out of a cosworth tho... 320bhp and 330lb/ft @ 3800rpm is not something to be taken lightly