[Jeff Chambers]

Originally Posted by USMC302

Your current injector status is: OVER INJECTED

There's virtually no such thing as over injected. The pulsewidth is only going to be what is required to deliver the amount of fuel necessary to match the amount of incoming air. That's how we can put 60# injectors in a blown 4.6l and still have it idle and drive like a dream.

I'm a fan of having more than enough when it comes to fuel. I've had 331 customers with 30# and 36# injectors run out of fuel. I'd rather encourage them to buy a 90mm LMAF and 42# right out of the box than have to tell them that they spent money on 36# and it still wasn't enough. Look at it this way, the 03-04 Cobra was rated at less HP than Coupe is shooting for here and it came stock from the factory with 39#.

Also, you NEVER want to run an injector at LESS pressure than it was designed to flow at. The spray pattern can be drastically affected. I tell most of my customers to forget about adjustable fuel pressure regulators. If we've got it tuned properly they should never have to touch the fuel pressure or timing.