We've been receiving a ton of calls and emails regarding the Fat Boy 46/47cc reed engine for the Primal RC MT. We are very, very close to releasing this package! We have plenty of Fat Boy reeds cases on hand for building and TR billet aluminum mounting kits are in-stock. We hit a couple bumps on the pipe and unexpectedly had to find a new pipe supplier. We're confident at this point it's no more than a couple weeks out. We thank you all for your patience and look forward to getting them into our customers hands. If you would like to be put on the waiting list just drop us a message through the contact form. Anyone on the waiting list will be emailed as soon as we're ready to take orders and before they go live on our website.