How do you adjust the fuel pressure regulator? My car is running to rich and the check engine is on. it triggered the map sensor reading high pressure. So i need to lower it but not really sure how to. Stock regulator. Is it adjustable? Help please!!! Gas price are High!!!

 

ill take 30 for it if ur intersted

 

your stock one is not adjustable, check the vacuum line going to it to make sure its not off.

 

i have a brand new holley one for sale made to fit on factory gsr manifold.