Charlie, a large number of the Z brothers have used Jon's new s/s replacement injectors with great results. Good parts at a fair price, and the gaskets are a very high grade of reproduction gasket from Jerry's gaskets.com.... it's one stop injector r&r shopping at it's best. Great choice!
Tom
Over at Marc's site I believe there is a step by step on the injectors. I know over at PNWZR1.com there is a "how to" write up, over at corvetteactioncenter.com I also believe there is a thread. Also, I think in Cliff's "Solutions" section here there maybe a step by step. If after checking all of these you still have Q's post up.
