Injector #7 was replaced last friday, since then i've put over 300 miles on my 99.5 450, 7.3 and since i got home, i've been having this starting issue. seems as though it cranks just fine, but takes a rediculous amount of time to actually start, and then when it finally does, it kinda coughs until it evens out.
heres the video (this wasn't as bad as it's been earlier tonight)