I ended up buying that 67 Riviera with a nice option I did not expect, POSI!!! Now, it has an edelbrock 1406 that needs a little help. I definitely will need to address that. Right now I am planning to order light springs for the distributor and maybe change the bushing as well. New coil, battery, plugs, wires. But none of that matters unless I have correct ignition timing. What do you all recommend for timing, and can I pick up horses and torque doing it right? Also what was the stock mechanical advance, not including initial timing? Any cheap performance tips are totally welcome for a nearly broke college student.