First time down the track

I ran a pro billet for a while, but had to change for my class. Due to my cam overlap I used to run 24 initial and 34 total. No vacuum. I bought the 10 deg bushing from FBO to be able to run that much initial. Now I just run the jegs billett distributor that you adjust the mechanical advance using plastic “keys”. I have found small block open chamber heads to be pretty sensitive to total timing. 2 degrees off and you will see it!