quench vs no quench?

So back to post one. I have been watching this for one reason. I have a 1974 440-4 engine. I also have in my possession almost every head made for the 383 and 440 in the last 50 years or so, including a set of closed chamber heads I was running on a '66 383 that performed well. On a stock engine would I notice any difference in performance between the closed chamber or say a 906 or similar head? I' m leaning towards the closed chamber head as long as I can be sure the pistons won't slam into them.