i am thinking of getting some extra gauges for her 88 formula 350.
i want to get the ones that mount on the pillar, which autometer sells, so i was going to get one for either 2 or 3

one will be a Z series fuel pressure gauge

can i just tap off the shradder valve to make it work?
if so, what if i went with the NOS wet kit? could i tee off from that?

the other guage will be a vacuum gauge
and if i decide on the nitrous then a nitrous gauge

i think she would like this addition to her car, gives it that race car look too

 

Yes you can tap off the fuel line. For adapting your nitrous fuel feed line you can look in summit or jegs and get the proper fittings, -4 T fitting, -4 union ect.... The gauge will not effect fuel for your nitrous system so no worries.