Awhile back, I started making up gasket & seal kits for the most commonly done procedures, in response to many emails asking "What all do I need?". Here's a link for the Fuel Injector Maintenance Kits, 90~92. The only choice you need to make, pertains to which type of seals you want.
Basically, Buna-N is best for 100% gasoline and also happens to be the least expensive. Viton is the best for Ethanol/Gasoline blends, but is more expensive.
90~92 Buna-N kit
http://jerrysgaskets.com/store2/root...roducts_id=458
90~92 Viton kit
http://jerrysgaskets.com/store2/root...roducts_id=459
Please note that virtually all new injectors come with o-rings installed already. That particular o-ring seal is PN1712222. If you are using new injectors, save some $'s, refer to the kit contents list on the website & get everything separately, except the 17112222 o-ring seals.
__________________
Jerry Downey
JERRYS LT5 GASKETS & PARTS
http://www.jerrysgaskets.com
1994
ZR-1, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc.
2016 Black-Red, 3LT-Z51 Auto 8-speed.