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<blockquote data-quote="Shadowrider" data-source="post: 3431457" data-attributes="member: 3099">You&#039;ll definitely feel the difference! I&#039;ve got seat time behind a factory blown 5.4L in 2 different Harley Edition F150s and the 572 (special order) Chevy Suburban with a Whipple added later. Screwed superchargers will make it feel like it never quits pulling from an idle all the way to redline. The one caveat is premium fuel is mandatory, not optional at all. Went through the mountains in AZ from CA driving back here in a Nissan Frontier 4X4 with a 5 speed manual and had to downshift to 4th and could barely maintain 60 at the high elevations. The blown F150 went through there with the cruise set at 80 and never downshifted out of OD. It didn&#039;t even notice those same mountains on later trips.And the 7.3 we had in our F450 flatbed got about 9 MPG all the time. Didn&#039;t matter if it was loaded or not. I drove it a lot when I was in CA. Thank God I had the company CC! The new tranny looks like it&#039;s really helped.</blockquote>

[QUOTE="Shadowrider, post: 3431457, member: 3099"] You'll definitely feel the difference! I've got seat time behind a factory blown 5.4L in 2 different Harley Edition F150s and the 572 (special order) Chevy Suburban with a Whipple added later. Screwed superchargers will make it feel like it never quits pulling from an idle all the way to redline. The one caveat is premium fuel is mandatory, not optional at all. Went through the mountains in AZ from CA driving back here in a Nissan Frontier 4X4 with a 5 speed manual and had to downshift to 4th and could barely maintain 60 at the high elevations. The blown F150 went through there with the cruise set at 80 and never downshifted out of OD. It didn't even notice those same mountains on later trips. And the 7.3 we had in our F450 flatbed got about 9 MPG all the time. Didn't matter if it was loaded or not. I drove it a lot when I was in CA. Thank God I had the company CC! The new tranny looks like it's really helped. [/QUOTE]

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