Hey there Guys..

Having a little bit of difficulty figuring out what curves are "in" my advent T3
-Best I can figure is, it's running a D22 curve set (which are.????)

This came out of my triple pipe ski years ago.
- My plan is to run it in my Lowell 1390 (with P/V's) single pipe, sometime this upcoming season. (these new svho's will take some keeping up with, let alone passing.?)
I may need to dig the pipes out as-well.? (do love the sound of them, particularly at idle.. - NASTY.!!!)

pic:. Click image for larger version. 

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Any input/advice greatly appreciated..
I've shot Advent an email. so hopefully they may have an answer.?