[kalbert]

Originally Posted by Desert1957

1. determine if the engine HAS a miss fire.
2. the dollar bill trick only works if its an exhaust valve.
3. vacuum gauge is still one of the easiest low buck diagnostic tools.
if the needle is oscillating rapidly , something is wrong.
4. if all else fails a "leak Down" tester is your most reliable option.
give a percentage of leakage per cylinder, then compare it to all others.

Is this why you had a "Camshaft Replacement" related thread earlier?

Desert

^^ This is good advice.

Also maybe why there is a bizzare plug color thread?