Ok I just installed a Raptor 150 lift pump and now after it sits for an hour or so it starts really hard almost like it looses its prime like the fuel drains back to the tank or something. Theres no leaks or anything but i just want to know if anybody else had this problem or if anybody knows how to fix. Any help would be great. Thanks!

 

You probably have air leaking back into the system, it's common for that to happen without fuel leakin out. Recheck all of your connections.