might be able to shed some light on your situation, as i have stated in a previous thread, i have had a dud grind before from tighe, although in saying that they were pretty good with the whole situation (accidental), i'm not dissing them. I'd be checking your timing of your camshaft, it would be advisable if you can get hold of a degree dial wheel to check if the cam is in time with the standard timing placements of the cam wheel, if its out you might be lucky enough to skip a tooth either way on the cam sprocket to get it into time, if not you may have to fabricate a new position for the cam sprocket. All the info you need is on the paper supplied with your cam,
cheers!