Do any of you tech's know anything about changing the r&p in the xfires? I want to get the 1st gear of my 6 speed to run a bit longer prior to shifting, also giving a higher top end. I did this to my '73 Jaguar and the performance is great. I am thinking the change in combination with the manual transmission will also help every gear performance. Any previous experiences or opinions would be GREATLY appreciated. Thanks again. :roll: :lol: :lol: