hey,
I had the same problem with mine finding injector seals for my 84'. The ones frim Kragen worked the best. They should fit snug around the base of the injector where it pops into the rail. Make sure everything is VERY clean, or they will leak. These are the most inportant seals. The ones that you are talking about that dont match.....are they the ones that seal the injector into the intake? If they are, then they may be the right ones. after a while of being in the seal housing, they form that way, so the new ones look different then the old. put them in and attach your fuel rail. when you tighten it down, you will notice how the new ones bulge a little like the old ones. hope this helps!