Well when you have 40 years driving experience come back and tell me I'm wrong! 
40 years.

I would have thought with that much experience, you would have had better results with the plywood, filler and fiberglass!

Is it the engineering that's involved that makes it cheating?? or are you talking about cheque book cars?
I'd like to see someone just "slap a turbo on" And get it running like "normal" car. Yes, forced induction gives you more power and torque, but it still needs to be useable. And thats down to component choice and mapping

Has any "turbo" haters actually driven or been driven in, a properly mapped turbo car?
NASP is all very well and good, But it takes ALOT of time and skill testing hardware changes etc to get small gains. The thread in the link shows this. Especially on plenum engines.
Not that i'm knocking NA, but don't think its an easy task to get HP "numbers". £8k tells you its not.
Keep an eye on threads in CGTI. Real world analysis on these engines with G meter and dyno data to back it up.
Proof that there are no real 180hp ebay chipped, k&n filter cars as frequently posted on the forums.