PS Just looked at your pics and that is an advance type timing light.That measures your total advance (both vacuum and mechanical) by running it up to 1500 rpm and turning the dial until the timing marks line up on your engine at ZERO.Then you read your TOTAL advance at the back of the light. I wouldn't use it for your 261.
Wanted Good Woman:
Must be able to cook , clean , sew , tune engines and polish trucks. Must have old Stovebolt and garage. Please send picture of old Stovebolt and garage.
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