1964 Dart Grüne Hölle Road Course/Track Day/AutoX Project

6/25/21:

After coming home from the trip last week I wanted to Investigate the timing Curve. As I just got the engine fired and running say 3 or so weeks ago, I wanted to fiddle with Valve lash, Carb tuning and the like, which i did. After a few weeks of driving and fiddling with those settings I turned my attention to the timing. I was limited by the Stock slant 6 distributors' mechanical adjustment from ma MoPar, and with no proper parts to convert to a claw style hold down from a newer lean burn or 1980's up Slant 6 Distributor I had to do some grinding and clearancing / slotting on the stock hold down plate.
Before My Trip last week I was limited to 10° initial advance on the Distributor the limit was caused by the adjustment plate hitting the block as well as the arced slots - the hold down bolt(s) was hitting the end of the arc on the adjustment plate. I modded that and now was able to put a seemingly ridiculous amount of initial advance into the curve.
I decided on 14° initial and 32° Total. I also experimented with the Ported advance instead of the non ported vacuum on the carb. I was running the full vacuum advance signal to the distributor before and that caused a bog / flat spot as the vacuum went away with more throttle angle. .... So I tried the ported vacuum signal to the advance can and it likes that better. Now it sure feels better below 2000 RPM.

I might try another lighter advance spring in the mechanism sometime. I found that I can run the car on 87 octane under heavy load with no pinging at all. But it does diesel at times upon shutdown.

Greg