Looking for some Differential advice

RustyRatRod said
All this advice is worthless since you left out some key points. One of the biggest is, what size tires do you have and what size do you plan to change to, if you change? Tire height has a huge effect on final gear ratio. On my 64 for instance, I am still running the stock height 13" tires and I have 3.23 gears behind a slant 6 and it is very peppy. I am extremely happy with it.
Click to expand...
I’ve got 205-70-14’s on the front and 265-60-14’s on the rear. Not changing them. I have an offenheiser? Intake and a 2bbl Holley now. It’s a dog. It’ll do maybe 50 on the freeway going up hill. When I downshift it just bogs out. I have a 408 Stroker and a built 727 to run that rear end with. I just don’t want my car to sit for another year.