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Re: TBI 454 vs. TBI 383
tuning is all about the right tools, look into one of these
http://www.dynamicefi.com/EBL_Flash.php
I've got one for my 454 and it's pretty nice.
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'06 2500 HD 4x4. manual transfer case, crank windows.
'88 V10 Suburban 4x4, "The Pig Rig" L05, 700r4, NP208, 4x4 beater camper fun truck project.
My trucks don't leak oil, they mark their territory.
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