Working on a 1970 340 Duster which is largely stock with the following exceptions; a Mopar Performance "Purple" cam shaft, MSD 6AL with a Blaster coil, Firecore plug wires, and a Mopar electronic conversion distributor with a vacuum advance. The plugs are one range colder than stock and gapped at .050 per the MSD instructions. Pump unleaded 92, 3.23 gears, 4 speed, stock tires.

What timing do you guys think would be best for this combo?