I'm betting on a 1980 UK-market model. The serial number, front drops, top tube cable stops, and centerpull cable stop are all undoubtedly Raleigh; it would be a Grand Prix if it weren't for those headlugs and the pump pegs.
I'm not sure if the '81 or '82 UK catalogs are out there, but if you can find them, look through it. I bet you'll find this machine in it.
-Kurt
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