Thank you. I will adjust the initial timing and vacuum advance to reach this values and will see how it works
I don´t know something about the history of the engine....
Do you have a picture from your Rochester B vacuum port for me?
Ill snap a photo for you here in a bit. Some quick reading on your truck via the gallery stated that the truck was restored so I assume that the engine was at least freshened up. Without pulling the head its hard to determine if it was bored over during that or just honed.
Full disclosure, I am still playing with all of this to get my engine dialed in where I want it and the afore stated numbers are where I currently am which is the best I've had it since adding the HEI. I had everything dialed in perfect with the points system but adding the HEI and larger plug gap threw everything to the wind and I've been tinkering ever since.
