Try, 'Sigh For a Merlin' by Alex Henshaw. He was the Spitfire test pilot based at Duxford, UK.
I bought a few copies when I went to Duxford about 5 years ago and wish I had of grabbed even more for other mates to read, as I won;t loan mine out, too teasured. Highly recommended reading. Just amazing stories.
Cheers,
Troup.