Any east coast guys? I can do it but just don’t have the tools to make the holes exact. I’d prefer someone who has the hrc jets and right bits etc. also I see a lot of old threads I want to do the newest upgrade and really could just send my core and get one back clean and ready to ride.Welcome! If you are looking to send out, Ct Racing did mine very recently. Racers Edge in Tucson does them as well. You could also try DASA and I’m not sure if Sredrum is still in business but worth checking into. There are also mods you can do on your own that are posted on the site in tons of previous threads.