Oh interesting, you removed the panel on the bottom side of the floor pan? That’s a good idea, I was going to come straight off the pump through that area but I don’t think a standard bulkhead will be long enough. I’d love to do a rear 4 link but this project is getting crazy enough as it is. Lol I think I’m going to run along the back of the tank and up the right rail to a bulkhead kinda outlined here. This pump is Holley’s returnless system. It’s got a fuel pressure regulator in the housing of the pump module so there’s no need for a return line thankfully. Just one line out and a vent.