What's a good cam to hit low 12's

My 70 dart went 12.8@105 with unknown cam, stock block and heads, 670 street avenger, TRI step headers, 904 trans with stock slant six converter and 3:55 with locker and slicks.

I have a 750 double pumper, 3000 stall converter, and I'm getting EQ heads. What would be a good cam choice. Thanks