I'm looking at Aeromotive Bypass Fuel Pressure regulators for my 95 Z28 with stock fuel lines. What do I need, -6AN or -10AN?

 

-06 is 3/8, -08 is 1/2, -10 is 5/8

 

I'm running 800HP with dry nitrous, with a -6AN supply line and a -6AN return line. Stock lines are 3/8" on the supply and 5/16" on the return.

 

So witch do I buy for my car? -6AN?

 

As Fred told you. You decide. I will give you a piece of advise though. When you get the fitting, get the matching hose to go with it. Don't mix and match mfrs. It will be even harder a job if you do. It's best to decide the line size based on the components you will be using. For example, some pumps use 10AN fittings. Some valves are 8AN. So let the components dictate what size you use. If you had a 10AN pump and a check valve with 8AN fittings, it wouldn't make much sense to use 6AN.

By the way, dealing with braided steel line is a bitch particularly if you never did it before. Prepare for a lot of cussin.

Witch, that's funny right there.

 

Look on google and or ebay for an assembly tool, I believe mine is called "Koul Tool" it was well worth the money as it makes the job not bad at all. When I tried it before that it was a total PITA.

 

Are you planning to run all -AN lines for the entire fuel system, or are you just looking to convert your stock plastic lines to -AN hose, so you can plumb in the Aeromotive regulator?