Well scince you went to all that trouble.
I did it with them removed by getting some carb cleaner and put a little tape aroung the straw that came with the carb cleaner so when installed in the fuel inlet it had a good fit. The you need to open the injector so I had an injector plug from an old harness, hooked the wires to 12 volts and sprayed till the pattern was good once the injector was open.
A little advice though is wear some goggles or something to protect your eyes from getting flying debri or cleaner in them.
Now I use the method mrnickleye talked about here.
http://www.toyota-supra.info/forums/...ead.php?t=4658