Rear end gear question? 3:23's OK

With a 408 i think you could use a 2.94.
I have a stock 340 and am looking for 2.94's to try in my Dart.
..Anybody have experience with 2.94's?

I got 2.94s in my Duster with a 360 and 904 trans and 28" tires. Highway cruising is a dream but I can hit 55 MPH in first gear (!!). Luckily the small cam and 10.5:1 comp makes my 360 a brute on the bottom end so it's still decent off the line but I want to put in a bigger cam and step up to 3.55s with a bit higher stall converter.