Nicks Garage 383 build
I'm with RAMM on the 383, never seen one that was very impressive. Years ago, I had a 71 RR with a tired 383. Being poor I did a stock rebuild, it was still a pig. Within a year I found a 67 440 out an IL state police car. I did the same poor boy rebuild, new valve job, hone, new rings, bearings and gaskets. Wow, what a difference, the 440 was twice the motor the 383 was. At the time I had a pretty good collection of 383 cores, I loaded all them up and sold them for scrap, LOL.
When I had the rebuilt 383 in my car, I made the mistake of installing an Edelbrock Torker. One test drive and the factory intake went back on. After my 383 experience my thoughts have always been build the bigger engine if one is available. It usually cost the same for parts.
As for 383s in A bodies, in a street race I've never seen one outrun a 340 A body.