1966 slant six 170 timing mark

moparkrazed said

I got the points gapped to 18 and that brought the dwell up to about 30. Just to make sure I'm setting the gap correctly, I measure when it'd resting on the point of the cam in the distributor not the flat part correct?

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Adjust the dwell with the engine spinning. Dammit you're makin this hard. Loosen the screw so it's snug enough to hold the points in place, but you can still make your adjustment with the screwdriver. Spin the engine watching the dwell meter and adjust to spec and tighten the screw and recheck.