15 f150 changed firing order via the cams, crankshaft is the same. You will need to swap both intake and exhaust cams. Easy button to avoid a lot of tuning is use gen 1 intake cams/timing components and intake manifold. That should be doable since you have the parts already.
I experienced the same thing when i shipped my mustang here. The octane rating is lower here, the fuel just isnt as good. That and the way the stop lights are set up, plus the high speed on autobahns makes for poor mileage.
I went from 21mpg average in colorado to about 16 mpg average here...
I have been looking into this, still seems pretty undefeatable.
Got a response from Brenspeed several days ago:
"Well I am glad that you were able to get things going. We have used this
technique in the past successfully when swapping computers, but I guess we have never used this process...
I think this was discussed, they key blank itself is not the same. You would have to get creative to make it work.
Edit: After doing a little research, there isnt much as far as keys for the 05-06 (Though if you wanted to sacrifice a 05-06 key and gut the transponder from it you could probably...
Got two originals? If so its cake.
For the remote fob:
Stick a key in the ignition cylinder, and turn it forward to run then back to off 9 times within 10 seconds, the locks will cycle. Then hit the lock or unlock button on your key fob, wait 2 seconds and do the next one. You have to program...