get a turbo engine then, i got 245bhp on a stock bottom end(apart from cam)...they are easy to work on, cheap to buy and as long as u get someone to set it up properly(that doesnt mean a r5 tuner, an imdependant rolling road) ull be fine, i got 245 tuning it by feel with different jets lol.

if u need any help, give me a shout, also if ur after a NA engine in it, u can chuck a clio 16v lump in it, i know a place that does the mounts