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Diaphone Jim · 01-31-2020, 04:18 PM

My BSA Gold Star (500 cc/ 30 cu in) had 42 hp, a figure which started in the '
40's.
My '57 AC Bristol had 120 hp from 120 cu in.

01-31-2020, 04:18 PM	#12736
Diaphone Jim Junior Master Dwellar Join Date: Sep 2007 Location: Northern California Posts: 2,122	My BSA Gold Star (500 cc/ 30 cu in) had 42 hp, a figure which started in the ' 40's. My '57 AC Bristol had 120 hp from 120 cu in.