Which fuel injector cleaner for 96 Vortec 5.7?

[CSR44]

Does anyone have a preference on which brand of gas treatment I should run to keep my injectors clean? I changed my intake gaskets this weekend and found out that my intake runners and injector nozzles were all full of sticky black goo! I scrubbed em with a toothbrush and carb cleaner and she runs nice and smooth at idle, I didn't really notice it before, but now I can tell the differnce.

Thanks!

[Rs051802]

Berrymans ChemTool works best for me;. I have a 1995, and that is all I have used.