Has the motor jumped timing?

Jadaharabi said

I do not see an oxygen sensor on the exhaust. At the back of the manifold it has the pipe coming around that went to the anti backfire valve and then went to the EGR pump or air pump or smog pump.
We have blocked that off and eliminated the air pump.
It still has a catalytic converter but the converter is not plugged.

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It's gonna be, very soon, because with the ignition and carburetion changes you're making and disabling the air pump (sometimes called "smog pump"; never called "EGR pump" because there's no such thing), you are sending much dirtier exhaust to the converter, which will heat up and melt down.

Jadaharabi said

1. 118
2. 115
3. 110
4. 103
5. 80
6. 97

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Doesn't say "jumped timing", but does indicate a tired motor and/or one with problems in № 5 and № 6, which are too low.

One thing you should do sooner than later is check if the timing mark on your harmonic balancer is accurate. On the \6 the outer ring (with the mark on it) can slip relative to the hub, then the mark no longer indicates actual timing.