When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
First thing I'd check is cam timing. You could probably verify this with a compression test if you don't want to strip down the front of the motor again
really hard on an LS to get the coils and injectors wrong, the factory harness isn't long enough to mix them up
How could you have done that? It's one plug to remove the rack of coils each side. And you can't get the plugs on the wrong side of the motor- the harness isn't long enough