Originally Posted by
txarkitekt
Welcome to LS1truck! Any pics?
It all depends on how the truck runs with your mods on the stock PCM. Since your cam is not to radical, it should idle and run pretty well... I put my mods on and then did a tune. Some people do the opposite. If you start out with a stock truck, I would recommend doing a tune first thing. But with the amount of mods you currently have, you can do a tune now. Once you get a tune, there are free updates--you pay shipping--so you can go ahead and update your tune later on once everything else is installed.