10.5 power valve ???

with a 4speed this might be hard to do, but does the motor run perfectly smooth if you steadily drive just off idle? or does it do a little bit of lean surging? just the slightest amount...

i'd guess lean in the transition...so your IFR's
my truck is doing thing now but i've been too lazy to adjust it yet. i dropped the IFR's down from .033 to .029, it's almost good but, but it does the slightest amount of surging just off idle, cruising down the street or through a parking lot at 10mph.
it also has a slight lean tip in stumble that showed up when i leaned the IFR's. it's most noticeable before the motor has about 20 mins of drive time in it (carb still coming up to op temp). i'm going to drill the IFR's a step larger.

Surprisingly, this HR650 (mech secondary) quick flow carb i put on my 318 in a powerwagon was almost perfect out of the box. i thought i was gonna be over carb'd and way rich...the thing was undriveable cold before i hooked the choke up. lean backfire through the carb so much...
i mention this because the AED carb might be similar to the QFT carb i got...as in not pig rich in the transition like everyone says holley 4150's are.

on the main jets, the 65's do seem small but if the car doesn't lean surge at highway speeds then they might not need to go richer.