Changing shift points on srt8

[2k6_srt8]

Ok so I have a 06' SRT8 300C and I installed the 91 oct performance tune along with raising the shift points to 6400 or 6800 rpm, BUT the shift points wont change. I reset my TCM and increased the rev limiter like it said but still no luck on the shift points. Others said its a lazy tach but I dont think so.

Can anyone give me step by step instructions on installing the tune and raising the shift points cause what ever Im doing is not working. Can you help me put???

[mikel]

6800 is not an option, it is 6400 for the SRT8.

Thanks