I've been having this problem for some time now. When I hammer my car off the line and the car hits a certain RPM, the car starts to bog out. When I let off the gas and shift into 2nd and accelerate hard, it bogs out again. I'm not even close to the rev limits set by Doug. It kind of feels like the car is not getting enough fuel at a higher RPM. Maybe running lean at a higher RPM??? I emailed Doug about this problem and I'm waiting on a response from him. In the meantime, has anyone experienced this problem or has any helpful hints or advice that I can use to try to fix it?

I also checked and cleaned my MAF sensor and TB, and the problem still exists.

 

What RPM does it do this at and is it consistent at that RPM?
Can you reload the race tune or better yet, the predator canned tune to see if ithe issue is present on that tune?