Ok, I am trying to give you my opinion on your questions, but I still do not have enough information to do that accurately. From what I have guessed, I would guess that you have a:
1960 basically stock drive train vette.
350 engine
4 speed
3.70 or 4.11 stock rear
mild cam
no Idea of how hard you drive your car and what distances
With that base line, I would think:
a 30 lb flywheel
2600 lb. pressure plate and organic disc
You mention that a " need to keep a softer pedal pressure without having to go to a hydraulic setup ". Why?? I know age and injuries can be a factor. I am almost 69.
If you really want a better opinion, I would need the following:
Cubic Inches
induction
compression ratio
cam specs , duration @ .050", lift and rpm range
heads
headers
exhaust system pipes and mufflers
transmission type and first gear ratio
rear end type and ratio
rear suspension type and traction devices
Continued on next message