He'd be pretty hard pressed to get that amount out of an 8V engine which is what the HF engine was, even the works rally team with the full expertise of Abarth engineers behind them just made 300bhp thats why they developed the 16V, it's generally assumed that the 8V's limit is about 250bhp but thats running a 16V ECU or about 230bhp running the 8V ECU its something to do with Lambda sensors & other stuff thats over my head. Whereas a standard 16V engine with a chip will get 260bhp & add exhaust 280bhp without any problems, this is why not many people have developed stuff for the 8V. Tho the benefit of the 8V engine is it produces more torque low down than the 16V.
