I have a 2002 2500hd 6.0l. It has a 218/232 cam, shorty headers and tvs 1900 with a 3.0" pulley. I'm running out of fuel and am going to install some fid 60lb injectors and a larger in tank pump. I would like to only do the pump 1 time. I'm probably looking at a 2.7" pulley with 10%overdrive . What pump should I go with walbro 400? I'd like to retain the factory fuel pressure regulator if possible. My truck does have a return style regulator.
Thanks for the help.

 

A 340 or 400 should be okay, that's plenty of fuel if just using regular unleaded fuel.

 

I called Fuel Injector Connection and they hooked me up with a 450 walbro and a set of Bosch injectors with adapters. Already have a tracking number.