First, it is very important that the LC1 is grounded at the same point were the MS is grounded, this way you'll get the same readings in ms and in the gauge, also be sure that you choose the right wideband in the MS settings. Second, that ignition advance looks very high, I run about 24 degress at 100 kpa , I'd take out ~ 7-8 degress from the whole table as a start .... btw have you verified the timing with a timing gun ?


P.S. it'll be good if you can post you msq file and a log with the issue ...

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190E 3.0-24v (M104 980) turbo @ 0.8 bar
1/4 mile: 2.483 / 13.540 / 175.17 km/h (street tires)