I bought a 2005 raptor 660 and have been chasing problem after problem. It has a no lid air box with a slip on. Sadly I bought it with a Chinese carb on it. It idles really well but can’t give it ANY throttle without it bogging and backfiring. I have stock jets in it with the needle position at 2. Also I’m at 6,000 ft elevation. Just looking for some help to see if I can get this carb to work before I buy an OEM one. Thank you in advance!