I am trying to identify various injectors I obtained and now don't recall what they are for. I have a new set of 6 Audi 078 133 551 BJ I assume some 6 cyl. A new set of 5 D3165BA and 3 of D3181AA (also stamped 621031) Any ideas of what these are/lb/hr, etc. Any good charts to id these. Ben http://www.gtquattro.com