Quarterhorse here. I run an aem wideband and you can link it to qh via the egr valve position 5v wire.
I just use my laptop to datalog, that way I can make changes on the spot.
When you say your gauges aren’t accurate, which ones are you referring to? Pretty much nothing on your factory dash is useful for eec tuning.
347, 205 11R's, Box R Intake, Ported lower, custom comp cam, 42lb injectors, 255LPH, pro-m 80, 75mm Cheap-ass TB, 1 3/4 x 3in LT's, exhaust by me, A5 trans, 4.10
422WHP/456Ft/lb. Tuned using QH by Tony @ Tuners Inc.