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Are you a 4.8 or 5.3, I'd sell the programmer, get a Lsx intake, custom spec'd cam, stal & tranny cooler, then get you a custom tune, and if that's still not enough you could always do some sort of FI

Could also be fuel pump failing at higher volumes, I had one do the same thing in my 99 z28

I believe after 95 the They where called tahoe's

New to site, I have a 05 LT Tahoe 4x4 5.3, black 17x10 diamo wheels, cai, shortuned , black in color, all blacked lights all way around, 5% tint all way around, future plans are- tea 5.3 heads, g5-3 cam, Lsx intake, full exhaust, I live in Harrodsburg ky, I have a good buddy that owns a shop in...