71 Duster 360 turbo build

Mine is about 32 total before boost. Then up to 7.5psi I'm pulling about .5 degree for every 1psi and then about 1degree for every 1psi of boost after. I did bump it up to 21degrees at 14.50psi in the upper rpms last time but typically it would be about 18degrees. View attachment 1716317721
I did look at that wrong. Just 40 in the region you won’t spend any time in.