really it was prolly your tune, not the injectors

 

I've heard alot of ls1 guys talk about the egr valves getting torn or wore out or something and causes it to back fire for some reason. A lot of them have they're emissions deleted out of the pcm, then put on block off plates fixing that problem. Yours sounds a little worse though.

 

well with the tune, i got the air pump deleted so that took care of the egr stuff. im thinking try o2's because they look nasty and smell like fuel

 

i think someone may have mentioned that earlier in this post

its worth a try, like i said it fixed my very similar problem

 

well the thing is the headers arent new they were when the car was first bought, but definelty not now

 

Update...changed plugs and all were fouled except for one cylinder...either no spark or no fuel...should I swap the plug wire and injector???