Ok, new theory, and possibly a new solution.  [quote user="Danny R"]The '98 crank is advanced by about 0.45" compared to the '97 crank.  By using '97 gears on the '98 crank, basically, I advanced the timing by an additional 0.45" meaning now my ignition timing is advanced by about ...

 Ok, I have a 98 GM 2.2L block and all internals, with a 97 head on it.  Both motors came from S-10s.  From the research I did, with the 98 block and 97 head, I have increased the compression ratio by about 1.5-2 points, which puts me in the 10.5-11:1 range.  Pretty high for a non-modded motor.  Here's my issue.  ...