EBL only comes with the GM spark and VE tables from the included 4-5 "stock" calibrations it comes with, it uses a GM ecu but your tuning with its own mask. Its labeled 350 tpi auto will not drive like the original GM tune, there is a ton more of tuning info on the net for the old GM masks spanning the last 20 yrs from multiple posters there is only Bob for the EBL
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