Yeah, i'd found that one in searching. Learned a little of what to expect with a dial-timing light! I just know I transfered over my maps from MS1 and the 12* idle was making it stumble and hesitate, and very slow throttle response on the whole. Did the trigger advance and found max vaccum was around -26ish*, but I'd get knock on the upper end. I just resulted in advancing my entire map up about 5 to be on the safe side, then retarded in boost as I heard knock (det can method). so far it's workin well, just takes time and sucks that the MS1 map didn't transfer straight over.