I tried to search this but came up with nothing.
Just trying to get the car ready before I put the motor in. Can the stock lines support 650rwhp+. I run a 175shot but may step it up at the track. I'm really not even sure what kind of power this thing will make. GTP said around 500rwhp with my setup NA.

 

My combo makes 613rwgp without nitrous and ~775rwhp with the current nitrous system. Still witrh stock lines and rails.

YMMV.

Rich Krause

 

I've seen the stock rails, in the stock configuration (in the passenger side-crossover-out the driver's side) support 925HP running 83# injectors at 4bar (58psi). After that, they reconnected the stock rails so each had a supply line in the back and a return out the front. Supported 1,125HP.

I run about 800crank with a dry shot, and use -6AN supply and return lines. I think -6AN is about 3/8", pretty much the same as the stock supply line.