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I think I'll leave the MAP sensor alone for the moment - there are more things to be corrected first, it seems.
Timing
I was able to adjust timing this evening.
With vacuum line to distributor disconnected and blocked, I set timing to 8 degrees BTDC. Vacuum was measured at a Tee near the MAP sensor at 16" Hg (the best for ages).
With vacuum line re-connected to distributor, timing was then about 8 degrees ATDC. Vacuum measured 14" Hg at the "Tee".
Re-checked idle - 750-760 rpm (wanders about a bit).
Re-checked dwell - 32.6 degrees
I pulled two spark plugs to view. The first was from a cylinder where the injector has been working fine. The second was from a cylinder where the injector leaked (before reconditioning last week). Both plugs are very black and sooty. I have snapped two pictures - forgive the blurring, as I tried to get close enough to show the details. I hope these images are good enough to give an idea of how sooty the plugs are.
Still blowing what looks like grey/dark smoke.
I'll keep at it and report progress.
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