Martyn, it will be a while off , I will be making another which will have some changes and if I'm happy with that then I'll look at doing a batch,
but it wont happen overnight. it will be a while. no idea on cost but I'm sure it will be affordable and a worthwhile investment, I'll certainly be putting them on
my Amal carbed bikes. Not much chance of me doing them for Mikuni's or MK2 Amals or anything else. For me Amal Premier carbs or Wassell (Premiers} are the go for stock or warmed street bikes
Don