Injector pintle end caps

[James Thorne]

Does anyone know where to buy the plastic caps for the end of bosch type injectors?  These
are out of a Ford but should not matter.  Most of the ones I have seen are about the same. 
Except MSD injectors which do not have plastic caps.  I already talked to MSD, Kinsler and
Cartech and Ford Parts.  I also tried the obvious parts stores.  Tried the junk yard too but old
ones all seem to crack as you try to get them off.  No luck.
 
Any help will be appreciated.

Thanks
James Thorne
jthorn at mustangeng.com