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4 Posts
I have a problem with my timing moving as rpm's increase.
At idle I have 36 degrees, when I increase the rpm to 4000 my timing reduces to 28 degrees. I have no vacuum or mechanical advance, both are locked out.
As the engine returns to idle, the timing slowly creeps back up to 36 degrees.
The distributor is and HEI, I have tried a unilite as well and the same thing happens.
My question.. Does this sound like a strentch timing chain? Although its a new motor, less than 2000 miles on it, I believe that is the problem. I included the engine specs.
383
cam 260 duration @ .50 625 lift
10 to 1 compression
220 cc 2.02/1.6 valves
At idle I have 36 degrees, when I increase the rpm to 4000 my timing reduces to 28 degrees. I have no vacuum or mechanical advance, both are locked out.
As the engine returns to idle, the timing slowly creeps back up to 36 degrees.
The distributor is and HEI, I have tried a unilite as well and the same thing happens.
My question.. Does this sound like a strentch timing chain? Although its a new motor, less than 2000 miles on it, I believe that is the problem. I included the engine specs.
383
cam 260 duration @ .50 625 lift
10 to 1 compression
220 cc 2.02/1.6 valves
