Okay so I’m like brand brand new here and I have some questions but first what my car is and what’s done. I have a 2006 chevy cobalt SS it’s supercharged daily it with about 21 psi and I love the car. This is everything I’ve done so far

-new control arms, new drill & slotted rotors, new ceramic pads, new motor&trans mounts, new coil packs, new throttle body&gasket, new spark plugs, new clutch, new master cylinder and clutch pedal fresh oil change and timing done, new wiper blades, new boost by pass valve, new o2 sensors, new maf&map sensor, Fresh coolant with sensors, stage 2 zzp serpentine belt, 2.8 zzp pulley, zzp header/downpipe , zzp catback exhaust , zzp cold air intake, headlights&LED lights, lime green fog lights LED taillights.

It sounds pretty good and is pretty fast, I was looking into getting a e85 tune with 80lb injectors. So if I take it to a tuner can they put the injectors on there so then they can tune it right then and there and what is everyone’s thoughts with me getting it. My goal is 350hp but idk what else to do to it.

So any and all advice or thoughts on what next would be greatly appreciate as I am super happy to finally join this group.

 

No easy way to say this, but the M62 on a 2.8 pulley is not going to get you 350whp without nitrous. You'll probably be around 280-310whp with the 2.8 and the mods you listed above, add nitrous and you should be able to hit your goal or a TVS1320. Although if my memory serves me right right around the 350whp range is when you need to replace pistons and rods.

The LSJ also responds really well to a ported head and valve springs so you can rev it out.

 

I was getting ready to ask what blower is on the car. An M62 with a 2.8 will make ~17.5 psi... so I'd have to assume you're running the TVS.

Swapping injectors is super simple. It can be done in 5-10 minutes on these cars. So yeah, I would do that right before getting the car tuned.

Who is tuning you and/or who have you been talking with? Category V Port Worx is in Tipp City, iirc. He's a long time member and if I was going to have anyone work or my car, it would be him. https://www.facebook.com/categoryvportworx/