I have recently Frame Off Restored a 1969 Z-28 to Original Specifications. I am utilizing the original Distributor with New Points, Condensor, Cap and Rotor as well as New Fuel Pump. The Car now has about 1000 miles on the Rebuild and I figured it was time to see how it would run, But to my surprise it will not pull beyond 5000 RPM.
I tried two different Carbs, Fuel Pumps and New points and Condensor as well as retiming the car several times (14 degrees advance and 38 degrees full advance) Dwell is good and I tested the Distributor with a Vacuum Gun to verify that it is advancing at about 7 - 15 lbs of vacuum. I'm out of Ideas!