Hi everibody i have a 1968 olds 442 with a 455 motor and a muncie 4 speed i was wondering what posi rear end is best for it and what gears im not familiar with those things im new to these my car is almost ready i will post new pics with the black interior thanks...

 

Need more info to make a suggestion.

What Muncie is in the car?.....wide ration M-20 or close ratio M-21 / M-22?
What size rear tire are you planning to run?
What cam & intake are used?
How do you drive the car....local shows only or some distance driving? Are you planning to make passes at a drag strip?

Once you figure this out we can make suggetions.