I had to replace the Gasket on 1999 suburban C1500 2wd Intake manifold and I rmoved the two fuel line on the top of the manifold . In the process some washer/ceals lost and now the fuel is gashing when I turn the ignition switch on. I greatly appreciated any help in given me the number of washer require for each line an the sequence of the installation. The fuel line have different sizes , one is larger than the other.

Thanks

The seals, spacer and washers are available in a kit from your GM parts department.