I am going to supercharge my car but I have a few questions. #1 being what all do I need for fuel system? I want to run the 2.87 pulley and I know I need a walbro, tuning system like Utec, and injectors. But the shop that is installing my kit says I need Fuel rails and some 300 dollar Fuel pressure regulator?!?!?!?! I may be purchasing a kit used and he says he has everything but the FMU and SS box. What do I need? The shop tells me I need a fuel return and for a fuel return system I need Fuel rails..... im confused......

 

600+cc injectors, a utec or better, and walbro pump along with a good tune will support a 2.87 pulley.

 

so what is an FMU for? and there is no need for a fuel return? which means I can keep my factory fuel rails and fuel pressure regulator? I just want to make sure I have everything I need before I start this.....

 

600cc injectors, Utec or haltech, walbro 255 and make sure ya tune the **** oput of it thats it

 

+1
u don't really need a RFS....

 

what does a return fuel system do exactly?

 

It helps create more consistent fuel pressure.

 

I am running a 2.87 pulley, all I changed were the injectors and retuned the car.