I bought a distributor from Advance Auto Parts for my '59 to replace the Loadomatic that was incorrectly matched to the Autolite 2100 carb when I bought the car. Using a timing light, a hand vacuum pump, and the specs in the factory manual, I have observed the spark advance this distributor is delivering, and I don't believe it is anything like what it ought to be.
The motor I currently have in the car is a rebuilt 292 block with '56 272 truck heads. I don't know anything about the cam or overbore or any other potential modifications. So, the specs listed in the shop manual are probably not ideal for my engine, though they are perhaps a good starting point.
I have found information on setting advance curve online, but it is all written with drag racing in mind. I don't want to race my car; I just want it to work the best it can. I especially value smooth running, good throttle response, and torque--who doesn't? But it will probably never see redline in my hands, and the pedal will rarely hit the floor. Also, I can't afford dyno time.
With all of this in mind, what can I do to find a good advance curve for my engine?
1954 Crestline Victoria 312 4-bbl, 3-speed overdrive