the 19#ers are known to run lean up top with a modded motor and the 243ers are a quick easy replacement you can run your stock fuel pump and MAF with

 

Hmm, I'm confused. I think the chart has to be wrong since I know for a fact no stock NA 4.6 ever made 350 lb/ft at 2500.
I'm also wondering why the chart has what seems to be the Mustang 4.6 listed when it appears to be a list of F150 engines? Dunno...

 

ok guys I have a problem the the intake ports are different if I switch the heads is the valve clearance going to be a issue

 

you have to get a PI manifold too. valve clearance isnt an issue.

 

wats a pi manifold intake

 

what manifold are you trying to use?

 

I'm using the intake and heads off the 97 exp motor

 

I'm using the intake and heads off the 97 exp motor I can do that right??

 

if your putting ur intake and heads on the engine then its fine.

 

 

Your not kidding, and it doesn't take much,- as far as mods. An intake and exhaust leans her right out @ WFO. ~ Tune needed... (In my case, - my numbers are still below yield, so the 19's could work, -theoretically) _310/38.96 perHr.

jector specs -

http://www.fordfuelinjection.com/?p=38

 

One thing everyones missing is,the Plenum,throttle body and air filter location is all different on a Mustang than the Expeditions.The Mustang plenum and throttle body face to the right(pass.side) side of the car,The Expeditions faces the front of the engine.Also the Expeditions air filter is on the left side(drivers side)and the Mustangs on the right side.The Mustang has the coolant hose that runs under the plastic(or composite) intake,the Expeditions runs along the top.The fuel rail is also Different on the Mustang than the Expeditions.The fuel line has to be extended,on the Expedition to fit onto the mustang fuel rail.