That ^^ is my go-to cam for a stock 383HP B-body with an automatic and 3.23 gears. Really too small for a 440, IMO, but perfect for the short stroke daily-driver 383 auto (11" converter) with a freeway gear. With a light A-body and a 4 speed, and more importantly in a 383, VALVE RELIEFS, I would go to a larger camshaft with tighter lobe separation angle. A 275DEH Comp is pretty versatile, but I like it with iron exhaust manifolds in a B-block. Maybe the XE275HL from Comp would be better suited if you don't mind adjustable valvetrain, minimum lifter preload and some noise from the aggressive lobes. If it were a 440, I'd rather see the XE285HL, but a 383 you have to be a little more conservative.
