Warning !
If you try this mod assure yourself to note all your original settings...
Originaly I add a 132 secondary main whit a 140 main jet but I was using the original needle. Now I use a more profile needle whit the Y-2 Needle jet.
I'm trying to see what is the size of the needle but I'm not able to see it ....it came whit a dynojet kit that I bougt from monsterparts a couples years ago
You will have the set the idle screw first and adjust the hight of the notch on the needle to adjust the mix. I take a little bit of trial an error to adjust it. If you never took a carborator appart; I would not suggest doing this mod