I run my distributor at 32 degrees locked and it starts fine no problems hot or cold. I went to locked to settle down the in gear idle oscillation issue I had. I also run a 3.5 power valve. I had to crack the secondaries open some on my Holley 750 so I could close the primaries up so the primary transfer slots were not over exposed. My cam has a 108 degree lobe separation angle which produces a pretty rough idle for a street car.