Silly question but... change timing after swtiching ECU?

D_Toro said
I'm still running some tests but apparently I had a bad ECU for a very long time.

Yesterday I replaced it and the car seems to be running fine but was popping a lot in high acceleration.
Is it normal having to check timing after replacing a bad ECU? Don't want to start fiddling with it and mess everything up. :)

Thanks.
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Your "new" Ecu is probably a junk one. many/most new ones are. Contact @halifaxhops for a quality replacement.
The ECU shouldn't change timing unless it's bad. You should go through a timing loop just to make sure. (check base timing and advance to total at around 3000 rpm or so)