I dont believe your setting your goals very high, I have a 67 A body that weighs 3200 w/me in it, and its old motor (last year) was running 11.50's with no problems. The 440 was a 68 block, 906 heads with small factory valves and slight gasket matching, .557 mopar cam, ductile rockers system, team g intake, 850 holley w/ a proform body, I believe the part # on the trw pistons were L2295s if I remeber correctly, wich were about 10.5 compression I think, on factory rods shifting at 5800rpm. My car has an automatic with a Coan 3500 streetable convertor, and a 8 3/4 w/35 splines and 4:10 gears... Pro parts headers into a full 3 1/2" magnaflow dual exhaust system, the car is a handfull on the street