Well i feel like i have asked too many ?s on this subject but here goes again. First off, @ 2 weeks ago i was hearing an inj. knock, the dealer said it wasnt an inj but maybe a broke wristpin in #1 cyl. they pulled head and #1 cyl was scored a little,so they said they were gonna put in a new shortblock. Well 2 weeks later the new shortblock is in and running but it is still at the dealer. They say it has a miss in #2 and #6. They moved the injectors around to see if the missing followed the injectors, they did not, so they dont think its the problem. They have told me that too much fuel is being returned to the tank. They are gonna put 6 new injectors in on the 22nd, this is when the mech. gets back from his vacation. (sucks for me huh). I dont think the injectors are the problem,but i will take the new ones anyway. Now why does the new motor have these misses when the old motor that had a scored cyl. ran fine,didnt smoke,still had good power, only had a lil knockin not have these misses. I know im about to go nuts trying to figure this out. DOES ANYBODY HAVE ANY SUGGESTIONS !!