when i had a 3.0 in my old ranger, i sprayed it 50, 75 and even 100 wet... are you wanting to do wet or dry system? if it was me, i'd go wet... i dont know how much the stock pump could keep up with the dry system... i tapped in to the fuel pressure test valve on the fuel rail... put my fuel saftey switch there also ( if pressure drops below a set amount of pressure, it kills the NOS system).. when i sprayed 100 shot, i was running straight 106 fuel and my timing was at 7 degrees on the balancer. i started the day at the track running a 18 ( on motor) and at 100 shot i droped my time down to 14.6 on street tires, could never spray off the line.. i had half million miles on the rings and bearings and it finally blew when i pegged 7k... NOS recommends the safeist shot for the 3.0 is 75, i dont have my book with me other wise i'd tell you what jets that is..its really the best bang for the buck.. put your system on a WOT switch and tap in to the TPS.. i armed mine by a toggle switch so i could go wide open without spraying.. hope this helps you, if you need any more info. just pm me..
o if you run wet, put your nozzle AFTER the MAFS..
heres a pic of my wet system on my 3.0
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