by 5.4 I hope you mean a 331 stroker 302....
The 5.4 (esp. in our half the planet) is ok unless its a GT(40)/lightning/07 mustang cobra they are not really that great IMHO. You will have a much better trq. curve and plenty of hp for track events. Now if your going to use some Aussi 5.4 do tell....and post pics for us to drool over.
Deff. post some pics of this thing.
If you did decide to go with an exploder 5.0 setup with no dizzy I am preaty sure the tweecer software now supports that computer. But really the stock dizzy is fine on the mustang for the amount of effort to change it out you wont gain a whole lot over it. The dizzy in the late model 5.0 is preaty durable and more than accurate enough to make as much power as you want.
The 5.4 (esp. in our half the planet) is ok unless its a GT(40)/lightning/07 mustang cobra they are not really that great IMHO. You will have a much better trq. curve and plenty of hp for track events. Now if your going to use some Aussi 5.4 do tell....and post pics for us to drool over.
Deff. post some pics of this thing.
If you did decide to go with an exploder 5.0 setup with no dizzy I am preaty sure the tweecer software now supports that computer. But really the stock dizzy is fine on the mustang for the amount of effort to change it out you wont gain a whole lot over it. The dizzy in the late model 5.0 is preaty durable and more than accurate enough to make as much power as you want.