"Even things as simple as different rear end gearing, tire size, or transmission type could require a different advance curve. That's why there are different model numbers stamped on the breaker plate."
This quote is interesting to me and has me wondering how does one determine a) that the timing curve needs to be adjusted and b) how do you determine how to advance or retard to make things optimal when it comes to distributor springs? My guess is a dyno test? Is there a way for a novice to make these sort of tweaks without a dyno?
mark
