Well I am about to order my fittings but dont know if i should go with what i went with my FC. On my Fc Iran KG Parts rails and every fitting was -6 AN . Then I had a Y-Block that divided the fuel to the rails also in -6AN. Bit the fuel feed from the pump to the y-block was -10AN. <--------Because I was running a aeromotive 1000.

As of now I have the following

kg parts rails
1000cc YAW Power primaries
1600cc bosch secondaries
Aeromotive A1000 FPR
Supra pump

Should I stick with -8AN everything or like my FC set up. I ran made 468 whp on the fc and never had a issue with fuel starvation or pressure drops

 

I think you could go with either setup without worry. Personally I'd go -8AN but I couldn't tell you a good reason beyond personal pref.

 

I believe -6 will support roughly 650rwhp. If I remember correctly it will support the maximum flow of twin Bosch 044 pumps but not much more. -8 will support over 1000whp. -10 is major overkill. Just make sure you get a good flowing fuel filter to replace the factory one, like a 12301 Aeromotive 100 micron filter after pump or a 10 micron before pump.

I could be wrong but that's the basic just of it.

 

Yeah I ran a 100 micron by aeromotive