Sounds like the fuel tank and pump you never went into when you installed black (ice) 164S engine has finally bit the dust and you need to be a trunk/tank diver.
Bet you need a new fuel pump mount rubber bushing and submersible hose(s) depending on VIN and a cleaning out of filter basket.
Bet you need a new fuel pump mount rubber bushing and submersible hose(s) depending on VIN and a cleaning out of filter basket.