after working on the spark timing tables and getting them where I thought it was close I added 5* to the high table and removed 5* from the low table then allowed the ECM to start tuning the timing and me watching the Knock Learn factor. When it started the learn factor was 0.00 but after a couple 30 minute drives the Knock Learn Factor has worked its way to .89 to 1.00.
I'm wondering if I should set the high table to the MBT table and allow the ECM to set the timing based on the Knock Learn Factor. This would set the high table to the maximum recommended settings and then set the low table low enough to allow the ECM to adjust for bad gas or what ever it thought it needed.
Thoughts please,
I'm tuning my 1996 K1500 5.0L with 0411 ECM conversion (ECM thinks its a 2002 Chevy Van), Truck is OEM stock except for a Flow Master Muffler with dual outlets
Neal