Trick Flow 440 heads, The Real Deal?

Not that I am recommending doing this but I was in a discussion elsewhere where it was suggested that bolting the Trick Flows on a mild street engine would result in soft performance except in the upper RPM ranges due to too large of port sizes. I completely disagree (we are not dealing with Max Wedge ports here). I am asking MRL, IQ52 and Andy F among others to comment on what to expect bolting the PP 240's on a 383 and a 440 that had stock shortblocks (in good condition, 10.25-1) along with headers, a Performer RPM intake, a 284 / 484 hyd flat tappet cam 750-800 carb and good ignition. Wouldn't the performance still be greatly enhances at all engine speeds? I don't think these heads would be overkill.....do you? Naturally the critics are promoting reworked stock heads, possibly bowl ported and lowering the C.R. to 9.25-1 for pump gas. Let's hear the experts throw in on the discussion. Thanks, JL