well, the timing is reset on my 89 spi, right at 20 degrees...premium chevron gas, still pings under load..going up hills etc....could the o2 sensor that i have a code 32 on be causing it to ping? run too lean maybe?

Yes. Replace it.

What he said.

okey doke, will do, lets hope the new one lasts longer then this brand new bosch did at 4 months

what's the resistance from the negative cable to the exhaust? (to measure properly you should disconnect the neg cable)

havent the faintest idea, i dont have any equipment here at all...