bigger injectors??
 

I am planning to install a Zex 125 dry kit on my friend's stang. His engine is making 275 HP N/A, with the 19 lbs injectors.

With the 125 shot, the engine will make about 400 hp. I put that through the fuel analyzer on this site and they said the injectors would require 100+ psi to fuel the engine. I know that going over 80 is bad. If I upgraded the injectors, then the car would be overinjected when its N/A, requiring about 29 psi. What do you guys suggest?

I would rather have a over injected car than to go lean on the N2O.

You can run some 24# and it will not be over injected. The 93 cobra came with 24's and it was not making 275hp.
Wade

That is what I thought. The fuel analyzer on this site is very misleading. (no ofense:cool: )

WADS56: What do you rev that 347 to? It must be high considering its N/A and a victor intake works in that combo.

I take it to 6300RPM on the street, and 6600RPM on the track (when I raced it). I thought that the SystemaxII would be better for my combo but i was wrong. The victor feels like it has more down low, but there is no question that it is way better up top.

What FP should I run the 24 pounders at (285 N/A). The Feul analyzer says 29psi, but that seems low.

I have about the same numbers as you and I have it at about 35psi. The only way to truly know is to get you air/fuel ratio checked. I'm gonna dyno mine again and see where I'm at, I think I'm a little rich right now, but I'd rather be safe than sorry.