My old 1963 Bebevdere 2 dr.sedan 415 HP M.W. NHRA legal stocker ran 11.23 at 119.6 MPH the last time it ran with me as the owner, it had to weigh 3540 lbs with the driver to fit into B/SA back then. My 440 short block 1963 2Dr. HDTP with the 1963 heads and 1964 carbs ran low 11.s and high tens weighing 3580 with me in it, no trck parts in either motor My point is a 511 or 512 C.I. short block with stock iron 1962-63 M.W. heads and stock type intake and carbs. will run mid to high tens all day long on pump gas in a half way decent 1963 savoy Put the bar in and go have some legal fun My Duster weighs 3450 lbs with me in it and it has ran high nines on pump gas with the air cleaner and exhaust system on with my 518 C.I. 400 block with Indy M.W. intake non ported SR heads and a 400-3 single 4500 intake and a single 1050 Dominator, big C.I. motors with decent heads make good power and torque The trick, hard part, is to hook it