Originally Posted By RapidRobert
Tach not working with MSD. subbed in non MSD ign & it started/ran but when cranking the starter sounded labored like the MSD was either on purpose or not supposed to, retarding the start function. Put MSD back in & it wont start? Wanting to clarify plus a BTT for ya since you ain't getting any love on your Q


no, sorry, subbed in an MSD analog box. both are 6AL's. the one in there was a digital, the subbed in one is an analog.

neither starts and runs. sporadic, but both will fire at times but always dies immediately.

with the analog box in, starter seems to stall and catch as if the initial was very advanced, digital box does not do that.