Oh OK I see what you are sayin, you don't want to void the warranty. Yes call em & go from there. post what they have to say. I would drill another hole in a cap as that is likely what they might ask, is how far off is it? EDIT You wouldn't want to send it in just to find out what you can find out yourself (how far RP is off). One other thing I would do now is bump up the timing/RPM to where it was acting up before (with the can capped) to see if it strickly a RP issue & not timing. You would need a dialback.
I have a digital dial back light with rpm read out. I have capped the vacuum advance brought the rpm up to 2500 while In nuetral and didn't hear it Miss firing. And I've also capped the vacuum advance and drive it and don't feel it anymore. I'm going to call them this afternoon and see what they say, is gonna ask for permission to fix it myself without housing the warranty if they say that's ok I'll modify my own reluctor is they say no I'll ask them to modify the reluctor
