Distributor springs

I mispoke on the 2* per 1000 rpm... The initial comes in faster then it slows as you get bigger in the rpms. all in around 4000.
I am still experimenting but the car seems to drive smoother.

Im running EQ Magnum heads with a tight quench and hyd roller so my engine might only need a total of 32 + 17ish of vacuum avdance.

Halifax could set your curve in a jiffy if you dont want to jack around with it.