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Message: [QUOTE="Mwilbur516, post: 256028, member: 784"] I got the Atlas 80 today. There is a small difference on the low end from a dead stop, but a much more noticeable gain in the middle of the RPM range. From say, a 40mph roll, it pulls a good bit harder. There is more smoke as well, due to increased fuel coming on faster, but with the SPD tune the smoke is still very manageable. The EGT's stayed in check as well. For anyone who knows anything about the I-20 corridor on the west side of ATL, you know about Six Flags hill. I hit the hill at 70 mph, 8psi and about 550* EGT. Mid ways up the hill I was at 72mph, 10psi and 650*. I pushed it up to a little over 80mph almost instantly and only increased boost to 15-17psi and when I let out at the top after holding the 80mph+ the EGT's were still looming below 850*. My truck was unloaded besides about 400lbs of tool box, so I'd guess the weight at around 8100lbs. I went with the Atlas 80 just because the Hercules makes it near impossible to pull fuel out for heavier towing. My truck is a toy, but from time to time I still have to use it to pull heavier loads, such as tractors from Dallas GA up through the mountains to our place in TN. I won't even begin to report on mpg's since I was pushing the truck playing the whole way there and back today. it's a bit over 90 miles to PHP from my house so I did more the 180 miles today. But made incredible time. I'll try to report back in a couple weeks on my mpg's and anything else I notice. Bottom line, If your FICM isn't tuned, you're leaving A LOT of power on the table. My truck really woke up with the FICM tuning. Even the original PHP tune made a huge difference in throttle response. I have had to change my driving habits so I'm not constantly squeaking the rear tires when starting. The new tunes from PHP also incorporate some inductive heating so cold starts will not be an issue either. Bill has really done an awesome job on the new PHP tunes IMO. [/QUOTE]