I have a 1990 vette with the L98 Engine I want to replace the fuel injectors. Need instructions on proper procedure.

Buy a manual.........Priceless.

Haynes is good (the manual i mean)

I just did my '87 l/98 last year. The only hard part was getting two of the intake plenum bolts out. You'll probably need an 8-10'' 1/4 inch drive extension w/ a 1/4" - 3/8" drive adapter. Also, be careful removing the injector retaining clips. If one gets away from you, it's gone. I also highly suggest that you re-assemble EVERYTHING dry just to find bugs. It will take only an extra hour, and you'll know what to watch for when you do the final assembly.