Tried myself on an '05 mustang tonight...
Mods were:
C&L Racer kit
Ford Racing Cat-Back
Steeda Pulleys
Result was 296hp and 309tq..
Wasn't too bad in tuning the MAF, increased/decreased it by a certain percent to get the A/F ratio in line... what I found weird though was best power AFR was 13 not 12.5 as other ppl say.
Max timing as 29* at WOT. I was commanding 32* but ran into knock retard... only way I knew it was KR was off the stang as it would pull timing.
In all I can say tuning a Ford is possible with HPT's! Can't wait for some more releases on the scanner and maybe a higher bit rate...