Lol fair enough. I'm trying to consider other things like brakes, suspension, handling, all that sort of stuff. Not just the engine, but stuff to make the chassis cope with the engine
If you can build reliable turbo b series with around 250hp for £3k with the chassis also modified to suit the mods, then fair play. Are you taking ecu and tuning into account also? Thats the best part of £500 at least.
Now instead of stating its 'pure balls', why not look at what im writing. I'm speaking from experience, not just making a recommendation.