I see where you are coming from..

but

its really not all that hard

manifold bolts on, change vacuum lines etc

set up a shift light's output to switch the runners

dyno tune to sort out the timing (as it can ping a bit if not tuned correctly)

agreed best thing is to swap in the whole EL ECU and engine actually, as EL has knock sensor as well. EA ECU u have to make a bit of a compromise with the tune, but I still reckon its a worthwhile mod if your staying NA

Its worthwile if you have smartlock and you can change ECU's

I'm doing a BBM conversion in my EA but after all the stuffing around I cant see that it is worthwile. If i hadnt bought all the parts I would have ditched the idea

thats my point,,if people are happy to spend the money fine,,i personaly don't see the value in something that can creat more hassles

still think its got nothing to do with what type of intake your running as mine is great to drive with the same cam
in two differnt cars.

ford changed the valve timming on the xr6 cam for reason. to make use of the extra flow that the xr6 head has.
as every good engine builder knows, you have to match the cam to the head. you have just fitted a cam desinged to run with different port flow.
that is why it's gutless down low.

you can fix this by adcancing the ignition timming about 5 degrees but you will find the engine will stumble a bit comming back to idle.

best bet is put the old cam back in.
by the way both the standard and XR6 EF cams have the same lift. only valve timming is different

Doesnt the XR6 normally have 3:45 diff gears ??

This could also be contributing to your problem if you have standard EA diff gears.

Have seen this problem before. It has a WHOLE lot to do with the manifold etc. The STD EF cam is 'nearly' an EB/D XR spec cam, so it will go quite well with the Std EA/B/D manifold, but when you go one step further to the EF/L XR cam, it all comes unstuck. Put on the bbl and an ECU or shift light setup that can handle it and it will all come good. Basically the grind isnt suited to the early manifold.

well... i put the standard cam back in it.... made sure all the timing is PERFECT... it's got more power then when it had the xr cam but it still doesn't have what it had... before i put it all back together i had one of my mechanic mates to go over it he said it was spot on with all the timing... what can i do to get the power back? was the cam originally out of place to begin with? if so, what way? ign timing could that have been out a bit causing the added power? and if i can get my hands on an EB XR6 cam, would that give me more power?

Cheers,
Chris...



P.S. i have ready access to the BBM and ECU's but i dont care what dino's say, they can be programmed by any moron to say what the owner of the car wants to hear, you want to know the difference between mods? take it on the track or street... and do 0-*kph tests... it's the only way to do it effectively! all i know so far is that my 0-80Kph time has dropped around a second or two