- Nov 24, 2003
- Las Vegas, NV
- 2017 Grand Sport 90 ZR1 57 Bel Air
OK here is the deal. I recently tore the fuel rails off of my 90 ZR1. I bought new injectors and had to purchase the primary bottom o rings separately from my local Chevy dealer @ $18.32 a peice. I now need to know if you put the primary o rings in the manifold first or put them on the injectors and put the injectors into the manifold with o rings installed. It looks to me like you put the o rings in first but it never hurts to ask. All help is greatly appreciated.