thanks! What I'm running into is poor power up hill. I got the truck up to 65mph on a flat road.
But even with a running start , a hill is a challenge to get to the top.
Seems if I have the timing set to 12 degrees ,it is hard to crank up. I`ll try again today at 12 degrees.
See how it does.
But setting the timing by the highest idle rpm and highest steady VAC pressure is not the way?
