Car is 1985 XJSC, V12.
Undergoing Under bonnet refresh, New spark plugs/leads, replacing all rubber fuel lines, and about to renew injector loom. The Injectors have been cleaned, rubber seals, then while replacing pintle caps -Then I discovered I have 10 Injectors stamped with an "A", and two unmarked. See attached pics.
These injectors have been in the car a LONG time, so - I'm Pretty sure they're original. Note different chamfers. Does anyone know if these are correct - and if so - where do I reinstall? Have put them back in 1A and 1B at the moment..

 

you say cleaned, if done professionly you should have a flow chart list.

giving flow numbers for each unit, if are all close within 2 or 3% all is well.

 

Cleaned, yes.. no flow test results.. :-(.
The different tip profiles were a concern

 

Update :- Found flow rate info :
Seems to be the same:
A 0 280 150 162
B 0 280 150 161

InjectorRatesBosch

and Very similar here except for length.
https://www.google.com.au/url?sa=t&r...,d.dGo&cad=rja

 

2 had a longer hose (front two injectors). The injectors are the same, but due to the longer hoses they run under a different number.