Idle is set to 950rpm by the EFI tuner. I had it at 850 but he said to bump it up. It is not a lumpy cam but it sounds great to me. I can get a video of the idle on the weekend and will post here. Power is hard for me to assess as this is my first and only muscle car. What I can tell you is that it moves when called upon at any speed on the streets. No hesitation at all.