fuel pressure on mildly modified setup?

[the.rise]

ive got a 255lph fuel pump sitting in the tank and am still running the stock fpr. the car is running a bit rich at idle and ive been told to upgrade by a few friends so i started looking around and came across this --

http://www.phase2motortrend.com/cispadfuprre.html

i did some reading around multiple "fpr" threads and was wondering what psi the regulator should be set at during idle. the ca18det threads say a little lower than 36psi at idle and up to 43 at WOT. I know that using a wideband to monitor afr at idle and wot is probably the best way to go but at the moment my bank account is running dry and i forgot to figure in a wideband to my budget

what is a driveable setting for an sr with the usual fmic/turbo back exhaust/p60maf/255lph? The car still has stock injectors and fuel rail and is running on the stock ecu

i did use the search tool but in all honesty i didnt know what search to use in order to find the psi commonly used at idle for sr20's

[DrifterProdigy85]

set fuel pressure to 43psi without the vacuum line attached.