thanks for the suggestions...
I have done in the past...
1. cleaned the MAF many times.
2. checked the voltage at the TPS, seemed to change steadily with no jumps.
3. cleaned out the EGR very well.
4. checked for vacuum leaks with starter fluid.
5. checked voltage at the MAF, seemed within spec's.
6. replaced the FPR
as for timing, I have checked it many times, and always seems consistant. I had a new distributor gear put in, it made no difference, so i think they put it in right.
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