TonkaYJ

Hi I am looking here for info on LS1 mods and upgrades I am building an old car that has an LS1 installed in it I am finishing a project started by someone else I am not sure what year the motor is yet, it is running now and seems to run well but may be a little on the rich side (I have not taken it out and drove it yet just moved it around my shop) I need to get her out on the road and see how she runs then. Nice site you guys have here look forward to learning alot from you all Thanks for all the info in advance! here is a motor pic.What year is it? how can I figure out what is in here? The guy who started this car is no longer with us so I am on my own to figure it out.