Rear end advice for racing with a 4 speed

Wow thanks for all the replies everyone. To be honest I wouldn’t consider putting in a Ford 9”, my car is a lot of things, cruiser, the odd car show, drag racing now, and of course a mopar, I just can’t cross that line of putting in a 9” even though a lot of guys do.

It’s definitely sounding like a Dana60 is the way to go with the 4-speed, my car’s insured for another few weeks and then that’s probably what I’ll follow through with over winter.

Thanks for all the replies guys! Mike N.