I need help figuring out what distributor to use on my 440. I'll be using an MSD 6AL ignition and an MSD blaster coil. Some info on my parts:

Forged crank
forged pistons 9.7:1 compression
452 heads
Eddy performer RPM intake
800 Holly
2,000 stall
3:55 gears
73 Roadrunner
Summit coated headers

The distributors I have to choose from are

1. Mallory unilite electronic ignition system # 3757801 used but feels good and tight

2. Stock 78 motor home 440 dist with extremely low miles almost looks new

3. 75 440 HP dist probably 100,000 miles or so on it

4. 67 440 dist probably a 200,000 miles on it or more

The car will be a mild street car.