I could be way off base but that mystery bike looks like the frameset at least may be a repainted Torpado. The rest of the gear looks changed. The Torpado came with those chromed lugs. The clearance for the brakes is making me wonder though because the bikes used to come original with28 inch wheel sets ( steel with dimpled rims for the wet)
Just a hunch, straighten me out if I'm bent.
Cheers Thom Adams
Holdsworth Avanti resoration
In Blandford Nova Scotia where 2 inches of snow has fallen as I write.
:-( I'm starting to do the index finger with the lips thing, the snow is getting to me. :-(