Howard,
We've got 85/88/91 here because of the altitude (valley floor is around 4000-4500 ft). We do get crappy winter gas but the summer blend seems pretty good. I'm running 88 in it right now, in th ehopes that if I do take it back down to Las Vegas (about 2000 ft), I can run the highest octane pump gas there and not have to mess around with it too much. Because messing around takes time, which I may not have (though just backing off the timing a few degrees is no biggie)... But that's also why I was asking about the MSD 8680 timing control. Everything's a compromise...
We've got 85/88/91 here because of the altitude (valley floor is around 4000-4500 ft). We do get crappy winter gas but the summer blend seems pretty good. I'm running 88 in it right now, in th ehopes that if I do take it back down to Las Vegas (about 2000 ft), I can run the highest octane pump gas there and not have to mess around with it too much. Because messing around takes time, which I may not have (though just backing off the timing a few degrees is no biggie)... But that's also why I was asking about the MSD 8680 timing control. Everything's a compromise...