Amal matchbox carb

Hi everyone I'm new to the site.
I've been cleaning out my friends dad's garage today it's like aladins cave as he used to race old nortons 650ss an drag cars anyway we found 4 amal matchbox 510 carb. In witch he said never been used. And a complete norton 650ss engine. I know I'm not in the classified section. Just wondered if this is the sort of thing people are still looking for. Any info would be great. Thanks,Stuart.