**** if I know. I don't even know what car, engine or anything else we're talkin about here. Does your sending unit have a vent nipple you can use for a return or just a supply nipple?
It’s a 68 barracuda with 340 and stock tank. I’m not sure about the vent, but I thought you were not supposed to do that because it’ll crest air bubbles in the tank right before it go to the pickup. Maybe I can run it returnless
