street legality...
I'm being serious as I can be, I understand your question(s) but I believe the answer lies in what you have already found.
let me also put it this way, I'm using the stock hard lined fuel system, and I have an external pump & filter that is all braided line and a few hard pieces, such as 90 degree bend. These are AN fittings and they are sized in 16ths... for instance a -8 AN is 8/16ths or 1/2 inch. -10 is 10/16ths...etc
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I'd give Lonnie (Lonnie's Performance) a call...he carries this stuff, and will get you going in the right direction.

700hp street should use 1/2" line? or 5/8" line?



