what mods should i do
i would like to upgrade to a 3800 series II of series III engine from gm performance parts and maybe a cold air intake i was also thinking about upgrading the exaust system which engine and which brands for the others and anything else you think i should add

Since this is posted in the Performance section, can we assume you are not asking about 22 inch wheels, a sound system, neons, or air bags?

Since we are not mind readers, it would be helpful if you were more specific? Are you looking for a 9 second quarter mile? 200 MPH flying mile? 24 second slalom?

Your budget and skill/experience level, along with what you want to accomplish, would be a good start. How much comfort, convenience, and fuel economy you are willing to give up, would also help.

Norm

Well, you'll have to start with some stickers. Preferably Eidelbrock, K&N, etc... You cant go fast until you look fast.