383 Stock Stroke Build

Few years back when I had my 1st 383 built, pretty much the same specs you have, I went with the edelbrock rpm intake nothin else came close on the dyno, we had 5 different intakes we tested, the victor single plane had 10 more hp up top but lost alot of tq at bottom. I used a 850 hp holley and engine made 502 hp and 484 tq. make sure you have a good torque converter and gear! or it will feel like a pig! Lol