The Spitfire covered a standing quarter-mile in an unprecedented 13.6 seconds.
While the normal single-carb, roadgoing A65 topped out at 104mph, the highly tuned Spitfire sprinted onwards – past 110, then past 120 – all the way to 123mph.
The BSA was quicker than the equivalent Bonnie, which was a full second slower over the quarter-mile and ran out of puff at 115mph.
Even Honda’s four-cylinder CB750 could only just match the two-cylinder A65 for top speed.
Read more in July’s edition of CBG
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