97 PA vacuum leak on the fuel injectors

What is your question?

I have installed a new upper intake manifold and getting P0170 code "lean bank 1". I have changed all the vacuum hose and was still getting the same code. So I started spraying carb cleaner around, and when I sprayed near and on/around the injectors, the RPM would jump up. I ordered Uremco injector seal kit and installed the new filter,o-rings and pintle caps. And still getting the code. Do I need new injectors?