At this stage in the game with that cylinder pressure you can't really use the vacuum advance even when it vacuum drops off and it goes back to Mechanical it doesn't happen fast enough and you'll get a clack a ping but it can be destructive and you don't want that. And now adding onto that you're at this stage of the game where its pretty efficient for what it is on the octane...see it revolves around that limiter...but with that kind of compression and it's about horsepower if youre going to run around on a ragged Edge motor so I wouldn't bother trying to find out the obvious and in that break something . And be wary of people asking you to send them your stuff, some of these guys dont ever post pics of anything they claim and 'might' have a mopar..."armchair racers" as they say.
