I have 2 EL falcons, both july 98 builds, 1 is an opt20 Gli and my other is a futura. I am wondering what the difference would be between the ECU's in both cars? The opt20 definitely drives harder than my futura but I am not exactly sure why? and was thinking it may be the way the ECU's are tuned...

If the ECU out of the opt20 is what makes it drive harder I was wondering if it's possible to put it in my futura without causing any issues? The opt20 was converted to duel fuel in 2006 and I am wondering if ford would have touched the tune on the ECU to make it suitable for LPG and if so, would it cause any problems putting it into my futura which is just straight petrol ?

Thank you for you help in advance.

-Shano