Not only rising the windows, the gas-diagram is very different as far as I know for resonance tube and plain tube
in many parameters and mostly in the time segment the intake is open when the ehxaust is open too - to get
the resonance tube participate in the Fuel mixture "travelling". Do you see that on your TT and is that one good
for resonance tube or you do not want to use such one ?

Here are couple links you might enjoy:

1. Engine tuning:

http://www.bimotion.se/

and also

2. Resonance tube design:

www.mh-aerotools.de/airfoils/javapipe_en.htm

What have you been reading would be interesting to me at least;
please post some links and titles with some comments on them.

Regards,
Nick