Just a little background that may help:
There were two different 383 engines available for the 1969 model year: 2-barrel and 4-barrel. The 2-barrel was rated at 290 hp. The four-barrel engine was rated at 330 hp and was identified on the air cleaner as "383 / FOUR BARREL". The 330-hp engine was unique to the Charger model in 1969. While this engine was available with an un-silenced air cleaner option, it differed internally from the 335-hp 383 "Magnum". Differences between the 330-hp 383 4-barrel and 335-hp 383 were mostly internal. Both versions used the Carter AVS carb and the larger exhaust manifolds from the 440 Magnum engines, but the Magnum had a windage tray in the oil pan, a different camshaft profile, and different valve springs. In 1969 the B-series engines were all painted Chrysler Engine Turquoise with the exception of the 4-barrel 383 four-speed and 440 Magnum engines which were painted Chrysler "High-Performance Orange". As usual, the 426 Hemi was painted "Street Hemi Orange". The 383 Magnum motor was used in Road Runners and Super Bees, but did not appear in a Charger body until 1971.
The 383 engine has a smaller bore than the 440 engine, which can lead to less power. Additionally, the 383 engine has a shorter stroke than the 440 engine, which means that it revs more quickly. This can be a good or a bad thing, depending on your driving style.
You can make either choice as "loud and nasty" as you want or should I say, afford.