What should i change to get into high 11's?

My motor doesn't have a Edelbrock carb I have a 750cfm speed demon vacuum secondaries. So I for sure am going to have my 3.91 pumpkin gone through and put in for service and I am going to either go with a ptc or dynamic converter. I also am going to have my heads taken off and put on a flow bench to see if they are worth using or selling and getting a different set of heads instead. I think once I get that far I will then have flow numbers available to match to a custom ground hydraulic roller to complete my combo. So much to do!