another cam question

If your bottom end is a stock rebuild then the compression is down in the weeds and you would be best to stay with a smaller cam or you won't have any bopttom end.

I would recomend one of the modern fast ramp cams from Comp, Crane, Hughes or Lunati over one of the old school mopar purple shaft cams.

The 770 carb is likely going to be too much carb for street driving.