Not sure if the RGEU head comes with tear drops, most likely. But I put them in when I converted, No a big thing. When I injected my Escort - pinto they were ment to have tear drops also but I didn't bother and it worked fine. If the head is on the car and you need to do it. I would be shoving a clean rag down the port so S%^t doesn't go down, but best to do with the head off.