Originally posted by billlsbird
....This is confussing me! I am planning on running 1/2" fuel line {which by my understanding is -10 AN?} so I will purchace -10 AN line. But most fuel pumps have an inlet/outlet of 3/8" NPT. A few pumps have 1/2" inlet/outlet. I am concidering running with 1/2 " inlet/outlet. So why would you run 1/2" {-10 AN} line and then go down to 3/8" to get into the pump? Doesn't this restrick the fuel flow? There is a better selection of pumps with the 3/8" in/out, I would rather pick one of these but this concerns me..... Please explain this to me! Bill
its really no need to put a #10 line on a 3/8 fitting. they say if you have a 3/8 pump, dont use a line smaller than #6, i've just all ways run one size bigger than the pump size, wheather it helps or not i dont know. if you think the #6 is not big enough then you need to get a bigger pump inlet/outlet. kitz is probably about right, but it looks small.