383 = no love
One cool 383 vs. 340 fact;
For the 1970 Cudas, the 383 was standard while the 340 was an extra cost option.
The extra cost 340 cars outsold those with the 383 by a fairly wide margin.
(Dang, that was two facts)
In longer wheel base cars like B & C bodies, the 383 is a better choice, it just depends on the car & what you want from it.