Somewhat new to Tuning, Have a 2000 Silverado 4.8L Stock Head and block, Pro LS Vortec Truck Swap Camshaft 222/231 112lobe +5adv 1.7.1 LS6 rockers and spring. Performance EFI Fabricated Intake Manifold with Fuel Rails and Throttle Body 15? Throttle Opening 102mm throttle body. 44lb injector set at 58psi return system Injector table loaded in Tune. Recalibrated the MAF down to 1% Error except in the drive in gear as it goes lean AFR 28%. in idle P/N Wideband AFR reads 14.8 to 15.0. Under able to adjust VE as it has no affect on the lean in idle.
Drive great pulls strong even on stock timing. Just can't stop it from going lean. If I park / brake and accel to about 2% TPS It trims down to 14.8 14.9 but KPA is about 89 t 90. looking for any insight to what table is causing this concern. 9_15 Lean in Gear.hpl