Bringing this back up to post some part numbers
WIX FUEL FILTER NAPA # wix-3737
Fittings for filter above...
* Wix Vette Filter: 33737
* Russell -6an to 3/8″ adaptor – 640850 x2 – For Fuel Feed and LS6 Fuel Rail
* Russell -6an to 5/16″ adaptor – 640860 – Return Line
* Russel 3/8″ to -6 an Push on Fitting – 640940 – Outlet of Filter to -6an hose
WIX FUEL FILTER NAPA # wix-3737
Fittings for filter above...
* Wix Vette Filter: 33737
* Russell -6an to 3/8″ adaptor – 640850 x2 – For Fuel Feed and LS6 Fuel Rail
* Russell -6an to 5/16″ adaptor – 640860 – Return Line
* Russel 3/8″ to -6 an Push on Fitting – 640940 – Outlet of Filter to -6an hose