MSD done a turboed version which was close to 300 horses.
285 cams availible on exchange or outright purchase. about £200
Would you not look at turboing it as even on standard compresion you would see 220bhp, you would have to run low boost but could be done.
How big is the budget
Don't want to turbo it mate, after the RS turbo i want something with more progressive power delivery especially as its FWD. Montune had these lumps at nearly 300bhp NA - obviously i'm not aiming for this, but with all the stuff i quoted above i'd like to be at least near the 220bhp mark.
As for budget, well its not massive, thats why i'm taking my time building the engine up (i have a spare engine by the way)
I am looking at building a very complete road car, I've aready got spax coilovers in it and i've sussed out the breaks AP 4 295mm pots (Actually the gravel spec RS 2K rally car breaks)