69 barracuda stock 318

OK for my best answer: give up on 11's and start with what you have now and tune, adjust and log yor changes. I would start with working on 60 ft times at first and see where that takes you. I had a friend that had a 343 Javalin that ran a 12.5 quarter with stock type exhaust and full mufflers in street trim. He had done a ton of tuning work.