Do we have a test port on our fuel rails? If so, what is the size? Is it compatible with 4AN?

 

I guess more specifically- where do I tap into to draw the fuel for nitrous?

And what is our fuel system pressure?

 

I think its a returnless system....so you would put that t-fitting where the main fuel supply comes from the pump to the engine

 

I can't help you were to tap it since i couldn't figure it out my self.
but i beleive the MAX stock fuel pressure is 55psi.

I can tell you were you can buy a "pre"tapped fuel rail, maybe you can make it out by looking at their pic. PM me if you wan't the link.

 

Try and follow the fuel line from the pump to the bulkhead of the engine. Where the line goes to a rubber hose is where you wana tap it.