just replaced a warped manifold.

now i am having the following problems

1 hard start,not long start,more like difficulty turning over.

2 service engine light

3 sooty black plugs(all)

4 has hard time returning to idle without dieing after stabbing the throttle.

my thoughts are

1 might have mixed up #6 and #8 injectors(positive of placement on the rest,a little foggy on those two)

2 clogged injectors (this truck has been in for trouble codes for clogged injectors three times in the last few months)


just trying to trying to double check everything before i have it scanned for codes.any ideas would be appreciated,thanks

anybody???