Recently had the engine on my 04 r6 apart to replace the output shaft and ended up lapping one of the intake valves after I found out it was leaking. Got it all back together and had to reshim the valve that I lapped, so all valve clearances were ok. Cam timing looked perfect before I put the valve cover on. The bike runs but it seems like cylinders 3 and 4 are misfiring. The headers do still get hot for those cylinders but not nearly as hot as cylinders 1 and 2. Tried swapping the coils with the coils from cylinder 1/2 with no luck so I doubt its a coil issue. Has brand new plugs, CR10EK which is what it had before I took the motor apart. Could the fuel injectors be clogged from sitting so long without any fuel in them? The bike has a new air filter too so I know it’s not that. Above 3k-ish rpm it sounds fine but below that sounds like a Harley. I have a lot of experience working on bikes but just can’t figure this out any help would be appreciated. Bike ran great before I took it all apart. The bike also has Mitsubishi coils, not the recalled denso ones.