I went back out and gave it a third try. Checked TDC to make sure it was correct and then I checked it at .040", .050", and .060". It came out to 105.5*, 105.5*, and 105.75* so it pretty much confirmed my second run numbers.

I guess I will go work on advancing it.

Dodgem...earlier you said to shot for 103-102. In the last post you mentioned 102-101. Why the change? Was it my initial reading of 105.5*?

One other thing, I don't have a cam card for the 509 cam. The book spec lists the centerline at 108 but you keep mentioning 106? Is 106 the installed center line and if so where did you find this spec?

'72 440 Cuda
11.673 @ 115.91 w/1.663 60'