Any last minute tips for when I Dyno?

I'm going to dyno tomorrow, and just wanted to know of anything to get every ounce of HP out of my car. I wil play with the timing, remove my air filter, and run a short belt. Anything esle? I am only getting 4 pulls and not tuning, so it can't be anything major, and I don't have an adjustable fuel pressure regulator, so I can't do that.

Thanks
 
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