360 Tune Up

Mattax said

Yes the defination of horsepower is that higher rpm makes more horsepower.
The point of strong idle is to make the most power at a low rpm.
If the engine is slipped into gear at 650 rpm and the truck marches away that's good power for idle.
Increasing rpm and vacuum in neutral proves nothing. Because the rpm isn't the same as before and there is no external load.

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So my initial goal for this build was lots of low end power as opposed to HP. My car is a 72 B body so it's pretty heavy.
My current testing and adjustment has been mostly from a stop and a couple of low speed "passing gear" performance.
I have my initial set at 16 now mostly because I am concerned about my total timing numbers even though I am not hearing any detonation or pinging with 28 initial. I will be doing a combination of highway, twisties, hills and around town on my trip so this a pretty good test. I will also be running my AC at times. I'll mess with it some more next week.