I was the go to guy by my friends for degreeing in cams. I found two off by over 8 degrees and another one I won’t ever tell you how far off it was because some would call me a liar 🤥
I hope you find your issue. My 1972 (340) Duster had a factory electronic ignition box that about drove me crazy back in 1975 when I bought and raced it.


1970 Duster
Edelbrock headed 408
5.984@112.52
422 Indy headed small block
5.982@112.56 mph
9.42@138.27

Livin and lovin life one day at a time