Yeah, sorry for any confusion, I am talking about total timing. I guess what I'm getting at is should I leave the timing where it is where the engine is happy from BP, or do I go with Jim's rec and adjust the timing curve up to give me another 4 degrees of total timing. I'm hesitant to do so because I am afraid of knocking and with my inexperience tuning webers not being able to diagnose the difference between the carbs being out of sync vs the timing being too high after install. I might reach out and dm some of the guys on here who have stacks installed. Thanks for yalls input so far though!