Quote:
Originally Posted by 68gmcdude
I did set the points gap to .019. Just curious, why set initial timing at 10 degrees? I thought timing on these 250's was 0. Also, I forgot to mention that my 250 has the factory California smog pump. The truck is all original so I'm keeping it on.
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10 degrees is so it will run better for testing purposes.
If 10 degrees doesn’t change the rough idle then either your point gap is wrong or it’s your carb.
It’s just a process of elimination getting your tune right.