Thread: Small miss in 350 SBC

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I was reminded of another good idea in a RockAuto newsletter. If you have the car in the garage open the hood, start it up and turn out the lights to get as close to total darkness as you can. Let your eyes adjust to the darkness, and look for a small spark under the hood. It just might pinpoint the problem for you.

Back in the day of 7 mm clear wires-those night shows were something--------


also, it doesn't take much for a crossfeed between parallel running wires and lots of these shiny wire holders make me cringe

I have thought about the darkness check, but haven't got to
that yet. Jerry, I also thought about the wire looms. One of
them has no rubber grommets in place. Putting new wires on
this Saturday, and will eliminate the wire holders for the time
being. Will keep my fingers crossed.

It would be helpful to isolate the skipping cylinder. Unplug the cylinders one at a time to see if the skip is isolated to a single cylinder.

Once I had an HEI skipping which turned out to be the pick up coil. The locator tit had broken off the coil, allowing the coil to rock back and forth. The insulation on the wires cracked, allowing the coil to intermittently short. Replacing the condensor under the cap might help.

Changed out the plug wires today and found one of the old wires
to be faulty (Header had burned thru it). This seemed to stop the
miss, but upon driving car it surges. Noticed the clear fuel filter
was gurgling gas inside. Is this normal, or could I have a faulty
mechanical fuel pump possibly starving the carb of gas.