2005 eton Beamer 2 build

[Sigrider]

Hey guys, I have a 2005 eton Beamer 2, I was pinned at 38 stock, so I was looking for more speed. I bought an tecnigas next r exhaust expecting a few mph gain but it was just more power, so I went into my vari and found a washer I believe is a restrictor, which everyone else says is not. It's very skinny so it looks like a spacer but I now have a top speed of 43, the carb has a 88 main, I'm about to get a 788 belt vs my 780 in hopes for a little extra speed as I still don't think I'm using all of my variator. I just got 2k clutch springs I'm trying to install but I don't have a impact so the clutch is a real pain. I don't think my rpms have increased so my exhaust port is only half cut out it looks like a D so I'm going to port it to match my exhaust later on today in hopes for a few more rpm. What's everyone think? Tips? Ideas?