MSD Disappointment ??

Kendog 170 said

I wanted more initial but increasing slowed cranking even more. Rear mount Battery 1OT Cable to a terminal at firewall near brake pedal then a 12" standard size cable to starter.Starter relay in trunk fed with 1OT as well. All connections are clean and tight.1 OT ground from frame rail to Battery. 1OT from frame rail to engine block. Smaller ground from block to heater motor as well.

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On my 512 Satellite I had to run a full length negative cable from the battery direct all the way to the block. Running it thru the frame did not work, I even had sub frame connectors. I have reed on this forum that other members have had the same issue. I refused to believe it until I fried a starter.
I dont understand your 8 degree initial timing, my gut tells me something's not right.