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I was wondering if anyone on here had a picture of what ones are and where the hpop lines go and also the ipr which im not sure of. I have been having problem lately and so far this site has been very helpful and all the guys have given good info. Thanks alot
The braided line going over the Fuel Pump is called a crossover mod. You may not have this but it shows you where the HPO rails are located in the heads.
The HPOP lines are braided and covered with convoluted tubing, one is near the FPR and other just barely shows the end attached to the head near the GPR in the picture below.
You cannot see the IPR but it is located in the driverside head all the way to the front in the HPO rail.
BTW: The HPO rails have plugs in both ends of the heads. They seal with o-rings and can be a source for oil leaks too.