I didn't look at the polls either, and the only advice would be consider EVERYTHING!
Tire size and weight have both been mentioned, as has driving habits. It all matters.
I used the stock rear end in my 1974 GTO with original 4-speed, and an ultra-wide ratio transmission (1st gear 3.42:1).
With the modified 350, first gear is basically useless at WOT unless you like tire smoke! Car weighs less than 3200, well, more with me in it. But, at my age, I don't often need WOT. I could probably tub the rear fenders (I won't), and add wider wheels with ultra wide tires and stop the smoke, but I like it the way it is.
Jon
__________________
"Good carburetion is fuelish hot air". 
"The most expensive carburetor is the wrong one given to you by your neighbor".
If you truly believe that "one size fits all" try walking a mile in your spouse's shoes!
Owner of The Carburetor Shop, LLC (of Missouri).
Current caretaker of the remains of Stromberg Caburetor, and custodian of the existing Carter and Kingston carburetor drawings.
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