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Tips
Tips

Allen Engine Analyzer

Just another name for a scope. I used on in a shop years ago.
I have a King in my garage. Use other tools instead.
It will show you vacuum (if you connect the vacuum line), spark cascades, intensity, dwell, rev it and watch what stumbles.
Kill individual cylinders for a balance test.
Usually has a timing light attached.

Once you see a problem area, then you pull the plugs and do a compression test anyway, then replaced the plugs with new ones anyway because it was time..
Takes up a bit of room.
Hundred bucks, go for it.
 
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