You remove the blue pump and carb regulator, and any line that isn't 6AN,...then Use the pump kit i pasted above to replace it.
I don't know how they have your line coming out of the existing tank, or if you have a factory sender still in place, but you can send the return fuel into one of the barbs that is currently not being used...or even the base of the filler neck.
i assume you don't have a sumped tank? The "right" way to do it isn't really for a factory sender to be supplying the uphill fuel to a pump like this...but alot of guys make it work, and are fine with this pump kit.
The line and fittings you already have can be used AFTER this pump if its 6AN...or most would use it as a return line, only if you need "extra"...and again that assuming its 6AN.
does that make sense?
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