i have a 93 camaro z28 6spd. and running a nos dry kit on it. i know whn i spray the vacume hose makes pressure tricking the fuel pressure regulator into upping the fuel pressure. well i installed a autometer fuel pressure gauge electronic sender. whn i spray will the fuel pressure go up past the normal wide open throttle fuel pressure. i havent had a chance to spray yet cause mi weather sucks.

also i took off my safety switch to mount the sending unit for my gauge is that safe.....

 

To run a 125-shot on the NOS dry system, you need to increase the fuel flow through the injectors by about about 40%. To increase fuel flow by 40%, you need to just about double the rail pressure... so you should be looking at 80-85psi when you spray. You did replace the stock injectors, right? They do not like to run at pressures that high.

In order to connect more than one device to the Schrader valve...

-NOS part # 17535 -4AN 90-deg swivel fitting
-NOS 24" -4AN hose with 1/8" NPT thread on one end
-A 1/8" NPT brass "tee" from any good hardware store
-Thread the fuel line into one port on the tee, the gauge sensor into the second port and the FPSS into the third port.