Almost got what I wanted.
Just read this sorry, but you should be able to get to 11.8 I looked at other cars that run that mph and they range from 12.00 to 11.8. You should be able to get there as I have a similar setup, but Im hoping for 11.8- 11.5 I will be happy with 112-116mph. I have the RHS heads which flow better than your eddys but urs are lighter. I also have a xs282 cam with more lift. I think you need a more modern cam maybe like mine or a Hughes. Ask IMM he knows alot and can help you port your heads if you want to.