100,000 miles, new 605 gapped .058 fwi 180tstat. Watch the scan gauge today power cuts off at 3500rpms boost fluctuates about 2 - 4psi. get 8.9 psi at 6000 rpms. Still has some get up when wot. -21 psi of vacuum at idle. Maf was reading max about 240 GPS. Any thoughts still experiencing this loss at 3500 rpms. Also have occasional 2 misfires max on cyl 3 4 2 during a rapid deaccell. They go away immediately. And yes rpms still increase when throttle responds decreases.