Duster 11sec?

Great build but a couple of things stand out to me, one is a 391 is a great Street strip gear but by no means in my opinion going to bring out your best times. I would think of 430 would be a much better fit, second I turn my 340 to 6500 all the time and have for the last 15 years same build with your parts I would think 7000 would be a much better sweet spot.