I am trying to put an old 82 stepside on the road, it says royal on the side, is it a d150 , b150, I am not sure, anybody know? The carb is giving me fits as well its a holly H2-2280 best I can figure, the date code is o963 and the other stamp R8692, I hope its a 228o carb can anybody clarify that as well? I'm so looking forward to driving that old truck!