My advance comes in now full at about 2500 rpm and thats when I have my vac advance starting to come in as it puts me at about 55 mph. I also tend to keep the rpms a little higher in the different gears too so I guess that helps. I have most of the valve clatter gone now and will hopefully get to the exhaust leaks soon. I could slow the advance back down but it sure drives a lot better advanced! I've been scouting out all the stations where premium is actually 93 octane instead of 91 or 92 also, surprising how many are different!