FPR question

[wild stroker]

Hey guys, do you need to check the fuel pressure after you do the FPR shim?
I was thinking about doing the mod but don't have gauge to check the pressure when I get done. What brand of gauge do you recommend?

Are there any disadvantages to doing this mod?

Any input would be great. Thanks in advance.
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97 F-250
4x4
5 speed
DIY Intake
3'' downpipe with straight pipe

[pipelayerjdh]

You should check the pressure before and after the shim. Any fuel rated gauge will work, but good ones are better. If you install a 90 degree fitting where the schrader valve is now, and reinstall the schrader, you can use a mechanics fuel pressure gauge to check it.

[Triflex]

Originally Posted by pipelayerjdh

You should check the pressure before and after the shim. Any fuel rated gauge will work, but good ones are better. If you install a 90 degree fitting where the schrader valve is now, and reinstall the schrader, you can use a mechanics fuel pressure gauge to check it.

Can an engine compression tester be used to check the fuel pressure at the shraeder valve?