Fred of AZ

I have a 65 2+2 with a 289 and a toploader 4 speed. The rear end is
the stock 8" with 2.70 gears. The car is going to the bodyshop and
paint booth this year, and while it's there, I plan on doing some work
on the motor. The car is sort of a daily driver...don't drive it
EVERY day. I'd like to get it setup to do some really serious freeway
flying. I live out here in rural Arizona, and not into the drag scene
anymore. But, I do enjoy opening it up out here in the lonely
stretches!

I'm going to keep the 289 and the 4 speed. I plan on going with some
better breathing heads because I still have the stock ones on the
motor. I've got an Edelbrock Performer 289 manifold with a Holley 600
double-pump carb for induction, and just upgraded a Motorcraft dual
point distributor with a Pertronix kit. And still have a set of
either Blackjack or Hedman headers on the motor, that I bought over 25
years ago, and they're still hanging in there.

My biggest question is the cam...what kind, specs, duration, lift,
etc. would be best to go with for top end speed with the above parts.
Any info is most appreciated.

Fred of AZ