After lots of searching and not finding much, How do you go about fitting an adjustable fuel pressure regulator. all the ones the i can find with a gauge are ones that locate on the fire wall. they have lines supplied with them for fuel and vacuum. Where I'm not sure is gow you can attach it to the fuel rail where the old fuel pressure regulator was. I have a major over fueling pfoblem and haveing a gauge woul help me figure out what is wrong

Get yourself a little fitting like this....

 

http://cgi.ebay.com.au/SARD-Fuel-Pressure-...%3A1%7C294%3A50

 

and just run a hose off it and into the new reg IN.

 

I have one that has a -6 speedflow fitting instead of a barbed end.

My Malpassi rising rate regulator came with a take off fitting that bolts onto the fuel rail of my 4AGE bigport as a direct replacement for the factory FPR. The actual regulator can then be mounted anywhere convenient, as you say on the bulkhead in my case.

 

I expect any regulator you buy would have something of that sort. When you buy the malpassi, you get a car specific model which presumably relates to the take off fitting.

yep - these guys are right, you need a fitting with a plain hose/barbed outlet to replace the stock fuel pressure regulator.

 

don't do what the previous owner did to the 20V in the KE70 i just bought - he installed the Monza FPR in-line AFTER the stock FRP, and then had the Monza FPR referenced to atmosphere (ie. not connected to vacuum).

Needless to say, the car ran ridiculously rich at anything less than wide open throttle.

 

Anyway, what do you want an adjstable FPR for anyway? The stock toyota FPRs are fine in 99% of applications, including mega HP engines... unless you are trying to squeeze the last drop out of your already maxed out injectors.