How much more HP if any would 3.73 gears give my 02 v6 camaro

 

None. Gear do not increase or decrease horsepower, but can increase or decrease torque at the drive wheels.

 

Looking to get Noticable amount of power for as cheap as possible

 

As I said gears do not increase power, but gears lower than what you now have increase torque at rear wheels and may make the car accelerate faster off the line. However, the engine will run out of RPM at a lower vehicle speed and burn more fuel. Also, keep in mind that replacing rear end gears does not come cheap, and is not a job for a newbie.

 

You're better off starting with a cat-back, high flow cat and CAI.

 

For the most amount of power for as little as possible would be nitrous. 100hp for $600 why not. But don't come to us when your engine blew. It's a v6 don't worry about getting power. Build it for handling but if you really want power sell it and buy a V8 a true pony car.

 

As stated before, gears don't add any amount of hp but will make your car feel like you added 30 hp/tq. Made the jump from 3.23s to 4.10s in my car and don't regret it one bit.