I have some really needed to be answered questions!

[powerstroke 825]

Ok, Everything that is on my truck is in my sig. Iam about to put injectors in it. I think iam going to put Warren 155's in just for the fact that iam not purchasing and turbo at the moment and do not want to get too hot! I was thinking about doing 175's but am a little lery. Iam going to get an Airdog II as well. Here is my questions
1. I have Glowshift gauges and i have a fuel pressure gauge and the sender that reads the pressure is on the fuel filter bowl. When i get an Airdog correct me if iam wrong but doesent that eliminate that filter? Where would my pressure read from?
Next question
2. Should i have my tuning revised for the injectors or will it be fine? I may do studs while iam in there so then i would get a new tune but if i dont then should i have my tune rewrote?
Thanks in advance , Travis!

[Dirty_Stroke]

Yes you will need your tunes re-written for the injectors. Vivian tweaked mine when i got injectors. I think you'll like the 155s, the mid and top end power noticeably increased.

[powerstroke 825]

Ok sweet man! And i think i may have found what i was talking about for my fuel pressure gauge. Does the airdog 2 take away the top filter?

[PGreenSVT]

What you do with the top filter is up to you. You can take it out but you will have to remove the stand pipe from the bowl to get fuel to flow through it. I would suggest you do that as the filter is not needed with the ADII.

I also suggest you make a block off to kill the return from that bowl thereby killing the oem FPR and let the regulator on the ADII control fuel pressure. You can leave the sender where it is.

[Dirty_Stroke]

I took the filter and stand-pipe out of the top bowl. I haven't hooked my fuel pressure gauge up just yet, is the port on the top bowl not a valid reading anymore??

[rdunagan]

should still be a good spot. only thing that changed is the filter is gone which that doesnt change the pressure. if you do studs the 175's should be fine. they are also good for towing and street. great on a stock turbo if you want to get the stock nozzle. if you get upgraded nozzles id say get a turbo to help

[PGreenSVT]

If you block off the return line and let the ADII FPR control the pressure you would be better off to use the test port. With the oem return line blocked off you may end up with some trapped air in the cap which will throw the reading off. I suggest eliminating the oem FPR by blocking off the return line and letting the ADII handle things. Otherwise you have to set the ADII FPR higher than the oem FPR and the oem FPR just returns the excess fuel. I don't like the whole idea of two FPR's in the system fighting with each other.