Hey guys I'm curious if anyone else felt some play in the rear timing guide. How much side to side play should there be in the rear timing guide? I know it's supposed to move freely front to back but side to side left to right sitting on the bike. With the cylinder installed and the head off mine moves very freely side to side. I took it out to ispect the bottom bracket/ rivet that is mounted on the bottom. It seems ok but it is a little sloppy like the hole in the guide is worn. Is it supposed to be a loose fit on the rivet or tight? I can't remember how it was the last time I had it apart. The front guide has two extensions to keep it in place with the head on, but the rear does not. Also I just picked up my cylinder head from ASRacing and there is valve seapage. He said he cut the seats for the new SS valves from a 00 426 and also lapped them. Yet gas seaps right through, I don't have any solvent so I used gas. Gas did not seap through with the old valves I just replaced. To me it looks like he bead blasted the head and barely cleaned it, then assembled the new valves in. It doesn't appear to be cut or lapped. But I just talked to the owner and he assurred me it was along with cleaned.