Tools needed
19mm and a 14mm open end box end wrench
time 30 mins

Here is the location of the OFV



Use the 14mm wrench and remove the plug that holds the spring in



Use the 19mm wrench and remove the OFV from inside the pump



Carefully lift the OFV and return line above the head dont pick up to high you can kink the line



Now remove the OFV



Here is the new Tork Tek 070hp Overflow valve



Make sure you replace the sealing washers


Push line back to the hole and start to tread the OFV back in by hand

 

Now this is the job completed


This is my fuel pressure now after install


Hope this is informative