thank's for the info mate iv got the car sortedIn the past people have got 399bhp from standard engines, but that was from good mapping, thought into its set-up and modifications to match.
Before any messing around, get down to your local dyno shop and have the fuelling and DET checked.
Once that’s done, you can then look at others areas; but DO NOT forget, with more bhp will come other areas to upgrade such as brakes and suspension.
These areas are most important before anyone gets carried away with engine mod's.