Yes they do run good, mine runs awesome. You could have a intake leak, the reeds may not be sealing properly, etc..... Trinity pipes are not a real great midrange pipe. I would call cascade, but I am pretty sure they will tell you about what I recommended for jetting. Most of us run the 35mm pwk also. 185-190 main, dek needle, start in the middle, 50 pilot 1.5 turns out. I hope you sealed up the intake with new gaskets?