i dropped my camera in the toilet so the early parts of making these things went un documented. i threw the master on the wheel out of b mix clay and then made a plaster mold of that. then made waxes and dipped them and melted out the wax and then poured in aluminum and knocked off the shell after they cooled put it on the lathe and trimmed and drilled and now it sits in the vans doghouse on top of the little carter yf carb. could also be drilled for a moto carb. i made 3. they were lost wax cast cause thats what we do in school but sand casting would work better for this style.