For a street car with 3.23 rear gears I'd probably use a Mopar .528 solid or something close to it. The cam that Dwayne picked would work also but might be a bit big for you. I have a drawer full of small flat tappet cams and I've found over time that for a real street car smaller is better. I use a 246 hyd roller in the 512 low deck in my '65 Coronet and I wouldn't mind going one size smaller next time.
