Quote Originally Posted by 2.3 Evo 8
No, I'm using a perrin electric boost controller. I switched it to a hallman manual controller and it would do the same thing.

I checked couplers, piping, and for cracks in the mani with no luck. There is something weird about the intake mani I'm going to get looked at, that just might be the problem.
That's what you get for using parts from a company that thpethializes in Thoobaru-Thpethific parts!

That boost controller probably has a thpecial viruth that is anti-EVO, purposely installed to thwart the already superior EVO.