I have an 06 SRW F350 4x4 with manual transmission. My truck is completely stock other than an AFE air intake system. So I have read a ton on here about custom tunes for the 6.0 using an SCT programmer, but everything I'm reading talks about shift points being so great. So my question is, since I have a manual transmission, is there a good custom tune for me to run? I am really wanting to increase my fuel economy more than gain a ton of power... I drive kinda like a grandma anyways. Thanks.