Small blocks love initial timing but you may be advancing to quickly for your setup
Thats alot of initial for that cam. Im only running 18 initial with my .508/292 degree cam.
At what rpm is your 32* coming in at?
I'm here alone today, tach is in dash. If I had to guess I'd say maybe 2000.
I ran it with the vacuum advance disconnected and it does not like that 20* at higher rpm.