[jdean]

Whaler,

I installed my 8680 on Friday. I will not be much help to you on experience with it, since my car is at the "go-cart" stage of building. Easy to set up. It does work. It appears to be self-calibrating upon startup.

I got the thing for two reasons, to retard timing for easy starts (this is especially helpful when the car is hot), and to tune in more advance for more power to take advantage of better gas, cooler weather or whatever. I do know that there is a lot of "free" power to be had with fine tuning the timing.

My last project car (the one I sold to get into the Cobra business) had problems because the amount of advance it liked for power really made it tough to start at times.

Maybe others will weigh in who have more experience with this.

John