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Old 08-20-2013, 06:15 PM   #22 (permalink)
RobertISaar
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Join Date: Jul 2012
Location: camden, MI
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MC SBX - '95 Chevrolet Monte Carlo LS
Last 3: 29.75 mpg (US)
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Quote:
Originally Posted by R.W.Dale View Post
I just an a couple tests.

No1 on the rear coil (run side) is firing on the mark with about 20 degrees of advance dialed in

On the wasted spark coil number 1 or 4 is also on the mark with the same advance dialed in

Now what I need to determine next is are the two #1's firing together or are they firing 180* out of phase
you answered your own question. if it were firing 180* out, then your timing light would fire with the timing mark on the other side.
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