Hi

I just bought 243 heads and 5308 cam which are stock on the LS6 engine
I also bought a smooth bellow and air lid. The engine already has an LS6 intake.
Do I need to flash the ECM for this configuration? If so is there anyone that has a setup like this and has anyone run a tune on one. I am new to this, so I have a lot to learn.

2k2 Trans am, ls1, 4l60e, slp lid, smooth bellow, k/n filter, ls6 intake, ls6 short block,

Thanx