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Just to rule out the 85mm MAF I would revert back to original MAF and IAT and give that a shot. Also relearn the TSP if you haven't done that already. I ran my car on stock 78mm MAF and IAT plugged in the lid with my PRC heads and Cam on original start up before converting to LS3 card style. Ran a little lean but it was good enough for startup.
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99 Z28 Trick Flow 215s milled to 61cc 228/232 Cam Fast 102 built 4l65e trans 4000 converter 12 bolt 410s Electric WP deleted PS/AC Dyno & Track tuned
2015 ATS Coupe. AWD 2.0 Turbo
2012 2500hd Silverado with LTZ 20s on 35x12.5x20
86 Buick GN Lesabre 1 of 117 (4-Sale)
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