2004 GT nitrous

Since your car will not have the schrader valve, your options are:

Buy a set of 99-01 fuel rails (passenger side only even) with the valve on it.

Buy the NX "fuel block" which drills into your fuel rail and creates the port you will need.



I *highly* recommend NX over NOS. NOS did not "start it all", they just started the 'nawz fanboy' craze from the FnF movies.

Get the NX kit....they measure their HP rating in RWHP unlike N.O.S. which measures in flywheel HP gain.

I have the NX fuel block....works great. But I reccomend having some O rings on hand. My stock ones were a bit brittle and broke. The reason I needed it was because of the fuel pressure gauge

Oh and im sure you know this....but PLEASE dont excede a 125 shot. I havnt heard of any problems until you get to 150...and anything over that is a pretty much sure fire back fire haha. Unless you go with a dry kit...but you will probably need new injectors.
And ofcourse, direct port would be the BEST way to go.

Mustang5L5 said:

I've read a lot of posts saying that 03-04's do not have a schraeder valve....


yet my '03 has one

Click to expand...

They changed mid year.

NX all the way and that's just because of customer service.
The fuel rail block doesn't drill in it takes all of 5 minutes to install. undo 2 bolts then put it in and tighten down.
Can you run without all the bells and whistles. short answer YES.
Will it be as effective no.
Will it be track legal maybe.

Ok Window switch HIGHLY encourge but I ran for an entire season without one. just don't go full throttle below 3k rpm.
Bottle heater HIGHLY encourage.. so you can use a certain bottle pressure to spray at. too cold your'll be rich and won't "hit" right. BTW Pm me if you need a few cheap ideas on it.
Blow down tube - ok in the trunk you "technical" don't have to have one but ever track I've raced at I had to have one.
Pressure guage - once again you need to know pressure so you know how it's going to hit. too high you'll be lean, to low you'll be fat. won't come up your empty.
Copper plugs preferable 1 range colder, I ran ngk tr6's for a year 20k miles and had zero issues with them, currently running the autolite 103's and zero problems so far.

If your going to go past a 100 shot a higher flow fuel pump would be on my list, actaully I went with the svt pump just to make sure and I normally run the nx 100 jetting.