need quick help on if its worth getting a cam i have an el falcon five speed manual and have just purchased a ef xr6 motor to fit in it over the next couple days and really want to do whatever work i can while its out of the car currents getting an msd ignition blaster and bigger injectors and fuel pump to go with it already has pacemaker extractors and emptied the cat but exhaust is stock behind that standard intake with k&n panel filter also am on a bit of a budget because i realise i also have to get the computer done to go with mods at the end of this and would also like help to know if its better to get a j3 chip or the piggy back system ? any help would be greatly apppreciated also any other modifications that i can get done i want to keep it looking stock as i can mainly because i dont want police saying i cant drive the car being a p plater but i also dont want to spend thousands and not notice a good difference and remember am on a bit of a budget for now
and also whats a decent exhaust from the catback

You wont need bigger injectors, just get AU injectors with the fuel rail and XR6 fuel pressure regulator, and an XR6 spec. Fuel Pump.

the injectors im getting im told are out of another el not stock ones but they are four holes not one and are from a v8

The std injectors are 18#, and the V8 ones are 24#.
It will chew fuel like it's going out of fashion.
AU injectors are 4 hole type, EL and earlier are Pintel type.

yer true that is there any difference in ef xr6 injectors and el falcon ones ? and would you know if theres anywork i have to do to drop the ef xr motor in the el falcon or should it be a straight fit ?

No difference in the injectors, just the ECU, fuel pump, fuel pressure reg. the head, valve springs and the cam......engine wise.

Aw really apparently there the slightest bit bigger and they have a different part number but yer ill most like get au one

Don't think the fuel pump is different just the fuel reg. XR unit is 300kpa and standard 270kpa.

Also keep in mind if you are putting your ef motor in an el it is not a straight bolt in. You must change the ef motor (coil pack set up) to a dizzy set up to suit your el. Not too hard, plenty of threads on here that can help with that.

And yeah I wouldn't bother with those injectors, just use your el ones until you can get a hold of some au ones

Well i with the injectors the ones that i already got now are the four point and apparently 39lb injectors

if they are 39lb injectors they are useless, they are way to big to run on factory ecu... you will be lucky if it will even start..

if your not 100% sure what injectors you have post a pic or part number of them and we can tell you what they are..