i have a 99 C5 and im just wondering if any one out there has a setup similar 2 mine and has an idea about how many horses are being produced...longtube headers,B&B Bullet exhaust and a votex intake..thanks for the help..

For optimal performance you really should take it to get professionally tuned. You will see a great difference from what you feel in it now. I would have to guess that if you have not tuned it yet then it is probably running a bit rich. JMO!
Greg

See my signiture below... If it's an auto it'll be lower.

I've dynoed a few more times after those numbers and average about 350/355 RWHP/TQ