28* initial timing for a 318? How can that be?

RustyRatRod said

Timing is such an easy subject to learn. There should be ZERO argument about it since you can try it a multitude of ways and put it back the way it worked best when you get through testing. It's not like you're set in stone when you change it.

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Quantifying the results of changes that move the needle only 5,10,or 20 hp is the difficult part. In your driveway you can run the timing all over the place and take it for a drive but all you can say really is “it feels better, or it feels worse”. This type of testing (minutia) really has to be done on a dyno under very controlled circumstances with very controlled variables.