I recently installed a Zex nitrous kit on my Integra ls and I plan to run a 65 shot. I also have a FPR and I was wondering if I should adjust it now that im running nitrous. My fuel pressure currently reads 40 psi at idle and gos up to around 45psi when I push the gas pedal.
Should I adjust it?
If so what should my fuel pressure be at?

 

yeah but its a dry kit...
even so i know zex dry kits monitor nitrous bottle pressure and add or subtract enrichment fuel so the engine never runs too rich or too lean when using nitrous.

 

Just installed a ZEX 55 shot on my H23.. no problems yet. All I did was install 2 step colder plugs. If you're really worried about it retard your timing a degree. Changing the plugs is most important.. I wouldn't run even the 55 without atleast one step colder plugs.

Fuel upgrades aren't really necessary with this kit. They're a safeguard, but more than likely you'll be getting enough fuel.