I am wanting to add a set of edge stage 4 injectors in the very near future, but i dont want to do that w/o adding some sort of lift pump. My question is can i slip in a holly blue back on the frame and retain the factory fuel line with the stock lift pump, or would i be better off just buy a kit and do away with the entire stock system? Fixin to add fuel pressure guage.

 

You could go either way and the injector pump could care less if you have two weaker pumps or one stronger one. Poor man's pusher pump is going to to nothing but help.