the 6401 cam in my stock 440 idles very smooth, good vacuum, drives great with a taller gear, and makes very good torque.

the 6400 cam in a 383 should run like a stock magnum cam. it may have a little more torque with the tighter LSA. it wouldn't be a bad cam for a stockish 383.

Last edited by lewtot184; 04/16/15 12:24 PM.