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Old 08-12-2017, 08:02 PM   #5
61Chevy454
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Join Date: Mar 2017
Location: Wellsville, Missouri
Posts: 103
Re: Sudden backfire and won't start until I adjust AFR

Quote:
Originally Posted by geezer#99 View Post
Now you got me confused!
Adjusting mix screws shouldn't change starting.

What was 'in the middle'?

What's your initial timing?
I know! That's why I don't think it jumped timing or anything.

The motor wasn't warmed up or totally cooled down, so it was "in the middle" per se.

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