Hello, I'm working with an 85 12A GSL. It has a Mikuni 44 Carb, a Wet shot NOS system tapped into all 4 ports and a Holley Red electric fuel pump and regulator. I would like to know the proper way to run the fuel lines in this car for the best results. Currently it comes in from the tank to the pump and then up to the engine bay in an enlarged fuel line, probably double the size of the stock line. Then it goes into a distribution block in the engine bay. This block feeds a fuel pressure gauge, the NOS system and the carb. It goes off this block into a T fitting on the carb, the other end goes to the stock fuel line. (So I'm guessing the carb is getting fed in two places.). Without a FPR the distribution block gets about 3.5-4 PSI on idle. Is this setup ideal? What is a better way to run this with the nos? Where should install my FPR that the previous owner did not run? Also should my pressure be so low? Thanks for the help

 

For reference:

 

I would run a separate pump for NOS

 

Does the rest seem okay?

 

I agree with siraniko you should run 2 fuel pumps since bolt system operate at a different pressure.
I recommend moving the foggers further up to allow for better atomization .

 

What punp should I get for the NOS? Do I was something higher pressure like a holley blue?

 

You can use the Holley blue I would also recommend a wideband af meter so that you can monitor you mixture.

 

The car has an Innovate MTX-L already installed for carb tuning.