[Sleepy323]

Ok I need some help...the motor is as bp..I'm trying to take off my stock fpr so I can run my a-fpr...I can see that the stock fpr has a vacum source. When I put a fitting in place of the stock fpr do I still need the vacum? Or can I just eliminate it and put a 90deg fitting and put my fuel line on...btw I have searched under fuel pressure regulator /fitting/vacum and seem to not find the answer I'm looking for thanks in advance..

 

[Onegimp]

Yes they need vacum sources to work properly.

 

[Sleepy323]

Yes I know the stock one does but I want to remove the stock fpr and put a fitting in place and just run my adjustable fpr...my adjustable fpr is set on 60lbs due to lack of fuel cause the stock fpr is still regulating 40lbs

 

[denisond3]

The fpr has to change the fuel pressure each time the vacuum changes, which is each time the throttle is moved open or shut, each time the engine shifts, etc. I would be glad to know if there is an adjustable fuel pressure regulator (with a vacuum connection) that can be set for a higher 'range' of regulation vs vacuum.

 

[Sleepy323]

So what can I do? I have 550 injectors and I'm stuck with not enough fuel cause my stock fuel pressure regulator and I do have an adjustable fuel pressure regulator installed....

 

[Sleepy323]

Ok guys I figured it out....I can eliminate the vacum coming from my stock fpr because I have a vacum source coming from my a-fpr to the intake manifold so I'm going to put a fitting where my stock fpr goes and just use my a-fpr so that I can get more fuel...

 

[Sleepy323]

Ok I bought the fuel rail adapter from murrays to take my stock fuel pressure regulator off it was 15$

 

[Sleepy323]

This is the fitting. Installed after I purchased it..I still need to get another fitting for a 5/8 fuel line