You'll end up spending a ton of money to convert over to a grudge bike so you might as well leave everything alone until then. You have to really think about how you want to compete. It’s tougher to get races with a turbo. Also consider your wheelbase length and tire. The clutch is another area where it depends on the type of race you want to get. If you’ve got a slider then you’re not going to find to many races from people without one. Big motor with the option to spray will get you more races. Concentrate on weight reduction and CG. Gixxer front end to get things lighter, BST’s, cut frame, subframe, tank, etc. Grudge bikes make a lot of power and they spend a ton getting the bike to such a high level. This isn’t for someone with limited funds. Grudge racing is at an extreme level. If you can lock in a race and win then you can win more money in a single race than some people win all year. If you’re number 1 others will out spend you to get the title and will be gunning for you. If you’re not at the top then you’re loosing money.
Gann makes a nice clutch!