Pump to eddy performer fuel line

If you aren't using the filter in the kit, it may just be easier to find one of the fuel filters that has the varying outlet sizes and put a hose barb at the end of your Edelbrock hard line. That's how I did mine. I put a 3/8" barb at the end of the line and a 3/8" outlet on the fuel filter. The filter inlet is a 5/16" barb, so you can run hose from the stock metal line to the filter and then hose from the filter to the Edelbrock hard line.

If you've decided not to use the Edelbrock filter, you may want to consider returning the kit you bought and just buying the hard inlet elbow by itself.