I'm slowly working on mods for my pickup. As far as engine mods I've kinda been leaning towards this list in this order. I haven't done anything to the motor yet.
1. I2 with Hemifever
2. Vararam
3. Cat back exhaust
4. Clutch fan delete and maybe an ATI pulley
5. Maybe a throttle body...
I just got 6.6 pulling a camper between Billings MT and Casper WY. There are a lot of hills on that stretch and a fair amount of elevation gain. I was also fighting wind. Best I got on the trip with the camper was 10.3.
3.73 gears
What would you advise for those running in higher altitudes and tunes? I live in Texas but make several trips to Colorado, Wyoming and Montana each year. The octane levels in those states are lower. Regular in my part of Texas is 87 I think, but that's mid grade in Colorado if I recall...
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