Hey thanks for the help but I think I fingered it out. The gauge I bought was
2 1/16 TINTED FUEL PRESSURE GAUGE PSI - eBay (item 260190233219 end time Feb-02-08 12:05:37 PST)
and I found this to connect the sender unit......
eBay Motors: Hose adaptor 3/8 in fuel press gauge fitting (item 120208160124 end time Jan-15-08 16:21:05 PST)
this should be it. Thanks for the help though, I'll come back on a let you know how it works out for me when i get off my lazy a** and put it all in. I'm still looking for a pod for the gauges I have 3 of the tinted glowshift series. I know I should probably just make a new thread for this but has anyone tried those 10mm triple core aftermarket spark plug wires they sell on ebay? Also, any suggestions on a good sounding muffler, I'm not looking for that high pitched civic sound, something deeper and cleaner, plus my Sentra's an automatic anyway.