Need to make a decision fast 5.7/6.1/340

You can either modify a fuel sending unit to put in an aftermarket fuel pump and sending unit, or you can go the cheaper route like I am doing. I bought a MSD external fuel pump for a Corvette for $169. It comes with a Corvette fuel filter that has a built in regulator, which happens to be the same PSI as the Hemi requires. Here is a link to it:
http://www.speedwaymotors.com/LS1-Complete-Fuel-Delivery-Kit,41792.html