Ran a 383 for years. Best was 11.17 @ 120. 452 heads, 13:1, 590 cam , shifted at 6800. I still have it as a back up motor.

.060 over 383 with old trw pistons, h beam rods, e-rpm heads flowed to 324 cfm. @.600 lift, and main stud girdle. 5.13 gears with super stock springs and car weighs 3200 with driver. Cuda runs 6.90`s with 200#s in front of rear bumper for ballast. The cam is a bullet cam for a 383. You will have to shift early in first gear to make it think it is a powerglide! The 383 is completely different from the 440 and advance the camshaft so. I used the rpm heads because velosity is important for the short stroke to make power.